Manual of the flora of Jackson County, Missouri - Bush, Benjamin Franklin, 1858 -1937 (1902)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (H. Holt, 1907)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (H. Holt and Co, 1901)

Manual of the flora of the northern states and Canada, by Nathaniel Lord Britton ... - Britton, Nathaniel Lord, 1859 -1934 (H. Holt and Co, 1901)

Manual of the New Zealand flora - Cheeseman, T. F. (Thomas Frederick), 1846 -1923 (Govt. Printer, 1925)

Manual of the trees of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Houghton Mifflin company, 1922)

Manual of the trees of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Houghton, 1905)

Manual of the trees of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin, 1905)

Manual of vascular plants of the lower Yangtze Valley, China - Steward, Albert Newton, 1897 - (Oregon State College, 1958)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1905)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1908)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1912)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1978)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1988)

Maryland geological survey - Maryland Geological Survey. (The Johns Hopkins Press, 1916)

Maryland naturalist - Natural History Society of Maryland (The Society, 1998)

Maryland naturalist - Natural History Society of Maryland (The Society, 2002)

Materia medica and therapeutics vegetable kingdom - King's College London. (J. & A. Churchill, 1874)

Mededeeling. Afdeeling Handelsmuseum - Koloniaal Instituut (Netherlands). Afdeeling Handelsmuseum. (Het Instituut, 1914)

Mededeelingen uitgaande van het Departement van Landbouw - Dutch East Indies. Departement van Landbouw. (G. Kolff & Co, 1906)