Pre-professional zoology - T. S. Gopalakrishnan; A. P. Kamalakar Rao Itta Sambasiviah (Madras Pearl Publications, 1971)
T. S. Gopalakrishnan; A. P. Kamalakar Rao & Itta Sambasiviah: Pre-professional zoology. (Rev Ed) Madras. Pearl Publications, 1971.--(591GOP)
ENGLISH