TY - BOOK AU - Unni,K.Sankaran TI - Conservation and management of aquatic ecosystems SN - 8170352908 U1 - 577.6 23 PY - 2002///. CY - Delhi PB - Daya Pub. House KW - Aquatic ecology -- India. KW - Aquatic resources conservation -- India KW - Water -- Pollution -- India N1 - Includes index; Includes bibliographical references ER -