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The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

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Carl von Linné, Vollständiges Natursystem - Linné, Carl von, 1707 -1778 (bey Gabriel Nicolas Raspe, 1773)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell, Petter & Galpin, 1876)

Cassell's natural history - Duncan, F. Martin (Francis Martin), 1873 -1961 (Cassell and Co, 1913)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1896)

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Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

Catálogo de la colección de aves del Museo Nacional (Museo Nacional, 1895)

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Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1871)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1879)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1915)

Catalogue of the Coleoptera of America, north of Mexico - Leng, Charles W. (Charles William), 1859 -1941 (J. D. Sherman, Jr, 1920)

Catalogue of the Coleoptera of America, north of Mexico - Leng, Charles W. (Charles William), 1859 -1941 (J.D. Sherman, Jr, 1920)

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The cave fauna of North America, with remarks on the anatomy of the brain and origin of the blind species - Packard, A. S. (Alpheus Spring), 1839 -1905 (National Academy of Sciences, 1888)

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