Kotpal, R.L., Agarwal, S.K. and Khetarpal, R.P. Modern Text Book of Zoology Invertebrates For B.Sc.& B.Sc.( Hons.) Classes - 04 - Meerut Rastogi Publications 1977 - 660 Publisher. No.: The Bangalore Tract & Book Society Subjects--Personal Names: Zoology Subjects--Topical Terms: Zoology