Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1919)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1920)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1921)

Monitoring frogs and toads on Region 5 national forests - United States. Forest Service. Pacific Southwest Region. (U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Region, 1991)

Monogenetic trematodes : their systematics and phylogeny - Bykhovskiĭ, B. E. (Boris Evseevich), 1908 -1974 (American Institute of Biological Sciences, 1961)

A monograph of the Hirundinidae : or family of swallows - Sharpe, Richard Bowdler, 1847 -1909 (Printed for the authors, 1885)

A monograph of the trilobites of North America: with coloured models of the species ... - Green, Jacob, 1790 -1841 (J. Brano, 1832)

A monograph of the trilobites of North America: with coloured models of the species - Green, Jacob, 1790 -1841 (J. Brano, 1832)

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 Petrefacten der Aachener Kreideformation - Naturhistorischer Verein der preussischen Rheinlande und Westfallens. (in Kommission bei Henry & Cohen, 1847)

Montana amphibian and reptile status assessment, literature review, and conservation plan - United States. Bureau of Land Management. (Montana Natural Heritage Program, 2009)

Montana's comprehensive fish and wildlife conservation strategy - Montana. Department of Fish, Wildlife,; Parks (Montana Fish, Wildlife and Parks, 2005)

Montana wildlife - Montana. Dept. of Fish; Game. Information-Education Division. (The Division, 1967)

Monthly American Journal of Geology & Natural Science (1831)

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

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1821)

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

Moore's rural New-Yorker - Moore, D. D. T. (D.D.T. Moore, 1850)

Morphologische Arbeiten (G. Fischer, 1891)

Morphologische Arbeiten (G. Fischer, 1892)

Morphologische Arbeiten (G. Fischer, 1893)

Morphologische Arbeiten (G. Fischer, 1894)

Morphologische und physiologische Analyse der Zelle der Pflanzen und Tiere : Grundzüge unseres Wissens über den Bau der Zelle und über dessen Beziehung zur Leistung der Zelle - Meyer, Arthur, 1850 -1922 (G. Fischer, 1920)

Morphologisches Jahrbuch (Wilhelm Engelmann, 1876)

Morphologisches Jahrbuch (Wilhelm Engelmann, 1883)