Srivastava, U.S. . Practical Invertebrate Zoology / Textual Documents U.S. Srivastava. - 3rd ed. / - Allahabad : Central Book Depot , 1961. - 282p. : ill ; 22cm . Index Subjects--Index Terms: Zoology Invertebrate Zoology-Practical G-Zoology Dewey Class. No.: 592 / Sr 38 P