; Invertebrates Kotpal, R L creator text Pure Science invertebrates. Zoology R L Kotpal and Modern text book of zoology ; invertebrates. xxu Meerut : Rastogi Publications 1990 11th ed. monographic eng

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xii, 648p. 24cm. / R L Kotpal 590KOT 9789350780404 :Variety Books Publishers Distributors :B-10, Street No 2 West Vinod Nagar Delhi -92 150115 20170525121611.0