HYMAN, L.H The Invertebrates: acanthocephala, aschelminthes, and entoprocta the pseudocoelomate bilteria Libbie Henrietta Hyman - New York McGraw-Hill 1951 - v.3 (vii,572p.) ISBN: USD 35.00 Subjects--Topical Terms: INVERTEBRATES Dewey Class. No.: ZOO 592 / HLn51