Jordan, E. L. Invertebrate zoology / by E. L. Jordan , P.S. Verma - 6th revised and enl. Ed. - Delhi : S. Chand, 1978 [1979] - iv, 1018 p. : ill . ; 23 cm. includes Bibliographical reference and index. Subjects--Topical Terms: Invertebrates. Dewey Class. No.: 592 / JOI 1978