Subramanyam, K Aquatic angiosperms: A systematic account of common Indian aquatic angiosperms - New Delhi: Council of Scientific & Industrial Research, 1962 - viii, 190p. - Botanical monograph no. 3 . Subjects--Topical Terms: Botany Subjects--Index Terms: Elatinaceae Universal Decimal Class. No.: 582.5(204) / K2