Environmental pollution and control /
Sethi, Purnima.
Environmental pollution and control / Purnima Sethi, V. S. Kulkarni. - [S.l.] : Alfa Publications, 2011. - 1 v. (unpaged)
9380937091 (hardcover) 9789380937090 (hardcover)
Environmental pollution and control / Purnima Sethi, V. S. Kulkarni. - [S.l.] : Alfa Publications, 2011. - 1 v. (unpaged)
9380937091 (hardcover) 9789380937090 (hardcover)