Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1909)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1897)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1910)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1913)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1893)

Memorias de la Real Academia de Ciencias y Artes de Barcelona - Real Academia de Ciencias y Artes de Barcelona. (1895)

Memorias de la Real Academia de Ciencias y Artes de Barcelona - Real Academia de Ciencias y Artes de Barcelona. (1901)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1906)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1883)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1879)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1867)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1893)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1820)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1876)

Meyers grosses konversations-lexikon. Ein nachschlagewerk des allgemeinen wissens. 2557142MC - Meyer, Hermann Julius, 1826 -1909 (Bibliographisches Institut, 1902)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1878)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1825)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1823)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1829)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1834)

Minutes - Conchological Club of Southern California. (The Club, 1941)

Minutes - Conchological Club of Southern California. (The Club, 1945)

Minutes - Conchological Club of Southern California. (The Club, 1946)

Minutes - Conchological Club of Southern California. (The Club, 1947)

Minutes - Conchological Club of Southern California. (The Club, 1953)

Minutes - Conchological Club of Southern California. (The Club, 1955)

Minutes - Conchological Club of Southern California. (The Club, 1959)

Miocene - Maryland Geological Survey. (John Hopkins Press, 1904)

Miocene - Maryland Geological Survey. (Johns Hopkins Press, 1904)

Mission scientifique au Mexique et dans l'Amérique Centrale : ouvrage publié par ordre de S.M. l'Empereur et par les soins du Ministre de l'instruction publique - Fournier, Eugène, 1834 -1884 (Imprimerie impériale, 1900)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1889)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1891)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1888)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1884)

Mitteilungen der Kaiserlich-Königlichen Geographischen Gesellschaft - Kaiserlich-Königliche Geographische Gesellschaft. (1859)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1884)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1886)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1905)

Mittheilungen über die Meeresfauna von St. Vasst-la-Hougue, St. Malo und Roscoff - Grube, Adolph Eduard, 1812 -1880 (Druck von Grass, Barth & comp. (W. Friedrich), 1872)

Mollusca - Fleming, John, 1785 -1857 ([Adam and Charles Black], 1830)

Mollusca & shells - Gould, Augustus A. (Augustus Addison), 1805 -1866 (Printed by C. Sherman, 1856)

Mollusca and Crustacea of the Miocene formations of New Jersey - Whitfield, R. P. (Robert Parr), 1828 -1910 (Govt. Print. Off, 1894)

Mollusca and Crustacea of the Miocene formations of New Jersey - Whitfield, R. P. (Robert Parr), 1828 -1910 (Govt. print. off, 1894)

The Mollusca and the Brachiopoda - Dall, William Healey, 1845 -1927 (Harvard College, Museum of Comparative Zoology], 1908)

Mollusca für 1901-1904 : geographische Verbreitung, Systematik und Biologie - Kobelt, Wilhelm, 1840 -1916 (Nicolai?, 1905)

Mollusca japonica descripta et tabulis tribus iconum illustrata a Guilielmo Dunker - Dunker, Wilhelm, 1809 -1885 (typis et sumtibus E. Schweizerbart, 1861)

The Mollusca of Dorsetshire : (marine, estuarine, freshwater, and land) and the Brachiopoda - Mansel-Pleydell, John Clavell, 1817 -1902 ("Dorset county chronicle" printing works, 1898)

The Mollusca of Dorsetshire (marine, estuarine, freshwater, and land) and the Brachiopoda - Mansel-Pleydell, John Clavell, 1817 -1902 ("Dorset County Chronicle" Print. Works, 1898)

The mollusca of Somerset; land, freshwater, estuarine and marine - Swanton, Ernest W. (Somersetshire Archaeological and Natural History Society, 1912)

The Mollusca of the Firth of Clyde, being a catalogue of recent marine species found in that estuary - Brown, Alfred (Hugh Hopkins, 1878)

Mollusca testacea marium britannicorum : a history of the British marine testaceous Mollusca distributed in their natural order, on the basis of the organization of the animals : with references and notes on every British species - Clark, William, of Bath. (J. Van Voorst, 1855)

Mollusca: The Southern Synthesis [Fauna of Australia. Vol. 5] - Australian Biological Resources Study (CSIRO Publishing, 1998)

Molluscan fauna from San Francisco bay - Packard, Earl L. (Earl Leroy), 1885 - (University of California press, 1918)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1897)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1904)

Molluscorum Britanniæ synopsis : A synopsis of the Mollusca of Great Britain - Gray, John Edward 1800 -1875 (J. van Voorst, 1852)

Molluscorum systema et catalogus. System und aufzählung sämmtlicher conchylien der sammlung vonFr. Paetel. Zur belebung des interesses für malakozoologie nach dessen manuscript hrsg. von dr. L. W. Schaufuss - Schaufuss, L. W. (Ludwig Wilhelm), 1833 -1890 (O. Weiske, 1869)

Molluscous animals, including shell fish : containing an exposition of their structure, systematical arrangement, physical distribution, and dietetical uses, with a reference to the extinct races - Fleming, John, 1785 -1857 (Black, 1837)

Molluscous animals, including shellfish ... Forming the article 'Mollusca' in the 7th ed. of the Encyclopædia britannica - Fleming, John, 1785 -1857 (A. and C. Black, 1837)

The mollusks of western North America - Carpenter, Philip P. (Philip Pearsall), 1819 -1877 (Smithsonian Institution, 1872)