TY - BOOK AU - P. L Diwakar Rao TI - Pollution control handbook 1986 U1 - 363.7 PY - 1986/// CY - Secunderabad PB - Utility Publications Limited N1 - P. L Diwakar Rao: Pollution control handbook 1986. Secunderabad. Utility Publications Limited, 1986.--(363.7DIW) ER -