Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1906)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1908)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1911)

Monograph of the Lacertidæ - Boulenger, George Albert 1858 -1937 (Printed by order of the Trustees, 1920)

Monograph of the Lacertidæ - Boulenger, George Albert 1858 -1937 (Printed by order of the Trustees, 1921)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1860)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1864)

A monograph on the structure and development of the shoulder-girdle and sternum on the Vertebrata - Parker, William Kitchen William Kitchen Parker 1823 -1890 (R. Hardwicke, 1868)

Monographie der schweizerischen Echsen - Tschudi, Johann Jakob von, 1818 -1889 (Buchdruckerei von Petitpierre, 1837)

Monstra animalium duplicia per anatomen indagata habito respectu ad physiologiam medicinam forensem et artem obstetriciam - Barkow, Hans Carl Leopold, 1798 -1873 (Sumptibus L. Vossii, 1828)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1806)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1808)

Morphologische Arbeiten (G. Fischer, 1891)

Morphologische Arbeiten (G. Fischer, 1892)

Morphologische Arbeiten (G. Fischer, 1893)

Morphologische Arbeiten (G. Fischer, 1894)

Morphologische Arbeiten (G. Fischer, 1896)