Swarup, R.
Environmental water pollution and its control - 1st ed. - New Delhi Mittal Publications 1992 - v, 408 p. ill. 23 cm. - Encyclopaedia of ecology, environment & pollution control 15 .
817099375X 8170993601
Water pollution
363.739403 / SWA/1992
Environmental water pollution and its control - 1st ed. - New Delhi Mittal Publications 1992 - v, 408 p. ill. 23 cm. - Encyclopaedia of ecology, environment & pollution control 15 .
817099375X 8170993601
Water pollution
363.739403 / SWA/1992