Lal, S.S. . A Text-Book of Practical Zoology: Vertebrate / Textual Documents S.S. Lal. - 7th Rev. ed. / - Meerut : Rastogi Piblications , 2000. - xi,311p. : ill ; 24cm . ISBN: 81-7133-492-X Subjects--Index Terms: Zoology Practical Zoology: Vertebrates G-Zoology Dewey Class. No.: 592 / La 15 Te