Kumar, Ashok Aquatic ecology by Ashok Kumar - 1st ed. - New Delhi Discovery Publishing House 2012 - 204 p. col. ill. 24.7 cm. Includes bibliographical references (p. [195]-198)and index ISBN: 978-93-5056-067-9 Rs. 1200.00 (hbk.) Subjects--Topical Terms: Aquatic ecoysystem