Hyman, Libbie Henrietta The invertebrates : Volume 1. Protozoa through Ctenophora/ by Libbie Henrietta Hyman - New York: McGraw-Hill Book Co., 1940. - x,726p. ISBN: 070316600 Subjects--Topical Terms: Invertebrates Zoology Dewey Class. No.: 592 / HYM/I V.1