TY - BOOK AU - Kumar,Professor Arvind TI - Aquatic Ecosystems SN - 8176484547 : U1 - 577.6 19 PY - 2003/// CY - New Delhi PB - A.P.H. Publishing Corporation KW - Ecosystems KW - Spines KW - Aquatic Plants N1 - gm N2 - Environment Management ER -