Ruppert, Edward E.. Invertebrate zoology / Edward E. Ruppert, Robert D. Barnes. - 6th ed / . - New York : Saunders College Publishing , 1994. - xii,1040p. : ills. ; 24cm. . NULL ISBN: 0030266688 Rs. 311.10 Subjects--Index Terms: INVERTEBRATE ZOOLOGY Dewey Class. No.: 592 / BAR/I