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The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (C. Scribner's sons [printed at the Edinburgh press], 1892)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (Morang, 1902)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (C. Scribner's sons, [printed at the Edinburgh press,], 1917)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (C. Scribner's sons, 1906)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (Scribner, 1917)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (J. Murray, 1892)

A study of the parasitic nematode genus Tetrameres - Mollhagen, T. R. (Tony Ray) (Texas Tech University Press, 1991)

A study of the structure and organization of intestinal helminth communities in ten species of waterfowl (Anatinae) - Butterworth, Eric Wynn. (University of Alberta, Dept. of Zoology, 1982)

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Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1981)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1983)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1985)

Sylvatic species of Echinococcus from rodent intermediate hosts in Asia and South America - Gardner, Scott Lyell, 1956 - (Museum of Texas Tech University, 2013)

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Synopsis of the parasites of domesticated mammals of Canada - Kennedy, Murray James, 1943 - (Alberta Agriculture, Animial Health Division, 1988)

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Tanulmányok a véglények köréböl = Studien über Protisten im auftrage der Kön. Ung. Naturwissenschaftlichen Gesellschaft. I. Theil. Entwickelung der der Kenntniss der Protisten.–Ein historischkritischer Überblick - Entz, Géza, 1842 -1919 (Verlag der K.U. Naturwissenschaftl. Gesellschaft, 1888)

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The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2004)

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