Parker, T. Jeffrey Textbook of Zoology Invertebrates / T. Jeffrey Parker and William A. Haswell Edited by A. J. Marshall and W. D. Williams - 7th ed. - India : CBS Publishers and Distributors, 1992. - 874 p. : ill.; 24 cm. - VOL-1 . Includes Index ISBN: 812390035X Subjects--Topical Terms: Zoology Dewey Class. No.: 590 / PAR 1992