TY - BOOK AU - Upadhyay, Alka Rani TI - Aquatic plants for the waste water treatment SN - 8170353351 : U1 - 581.954 23 PY - 2004/// CY - Delhi : PB - Daya Pub. House KW - Aquatic plants KW - India. KW - Sewage N1 - Include index ER -