Nanayakkara, R.S. Jayasinghe, H.J.M.C.N.H. Kandanarachchi, C.
Project report on industrial pollution in Ratmalana area - Moratuwa University of Moratuwa 1988
a628.515(548.7)
AIR POLLUTION-SRI LANKA
INDUSTRIAL WASTES
WATER POLLUTION
Project report on industrial pollution in Ratmalana area - Moratuwa University of Moratuwa 1988
a628.515(548.7)
AIR POLLUTION-SRI LANKA
INDUSTRIAL WASTES
WATER POLLUTION