Environment : problems & solutions /
Asthana, D. K.
Environment : problems & solutions / D. K. Asthana and Meera Asthana. - 2nd ed. - New Delhi : S. Chand Co., 2001. - xix, 434 p. : ill. ; 24 cm.
8121916542
Environmental Science.
363.7 / ASE
Environment : problems & solutions / D. K. Asthana and Meera Asthana. - 2nd ed. - New Delhi : S. Chand Co., 2001. - xix, 434 p. : ill. ; 24 cm.
8121916542
Environmental Science.
363.7 / ASE
