Prasad, S.N. . A Text Book of Vertebrate Zoology / Textual Documents S.N. Prasad. - 8th ed. / - Allahabad : Kitab Mahal , 1969. - vii,870p. : ill ; 22cm . Index Subjects--Index Terms: Zoology Vertebrates G-Zoology Dewey Class. No.: 596 / Pr 886 Te