Official lists and indexes of names and works in zoology. Supplement 1986-2000 - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, c/o Natural History Museum, 2001)

Official lists and indexes of names and works in zoology - International Commission on Zoological Nomenclature (ICZN, 1987)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1857)

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1919)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University press, 1917)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University Press, 1945)

On molecular and microscopic science - Somerville, Mary Fairfax, 1780 -1872 (J. Murray, 1869)

Opalina : its anatomy and reproduction, with a decription of infection experiments and a chronological review of the literature - Metcalf, Maynard M. (Maynard Mayo), 1868 -1940 (G. Fischer, 1909)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1957)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1954)

Organisation, systematik und geographisches verhältniss der infusionsthierchen. Zwei vorträge, in der Akademie der wissenschaften zu Berlin gehalten in den jahren 1828 und 1830 - Ehrenberg, Christian Gottfried, 1795 -1876 (Druckerei der Königlichen akademie der wissenschaften, 1830)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1905)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (D. Appleton and company, 1914)

Outlines of natural history for beginners - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1875)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Pentland, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton, 1906)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (H. Frowde and Hodder & Stoughton, 1921)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Humphrey Milford, Oxford University Press, 1929)

Oxidation-reduction potentials in bacteriology and biochemistry - Hewitt, L. F. (Williams and Wilkins, 1950)

Parasites : articles contributed to Wood's reference handbook of the medical sciences, new series, 1900-1904 - Ward, Henry Baldwin, 1865 -1945 (1904)

The parasites of man, and the diseases which proceed from them; a textbook for students and practitioners - Leuckart, Rudolf, 1823 -1898 (Pentland, 1886)

The parasites of man, and the diseases which proceed from them : a text-book for students and practitioners - Leuckart, Rudolf, 1823 -1898 (Young J. Pentland, 1886)

The parasitic amoebae of man - Craig, Charles Franklin, 1872 -1950 (J. B. Lippincott Company, 1911)