Verma, P. S. A Manual of Practical Zoology Invertebrates : for Undergraduate and Postgraduate students of All Indian Universities - 15th - New Delhi S.Chand & Company Pvt.Ltd. 1971 - 497 ISBN: 9788121908290 Publisher. No.: Intact Book Home Ltd Subjects--Personal Names: Zoology Subjects--Topical Terms: Zoology