Ecology and environment /
Sharma, P. D.
Ecology and environment / P. D. Sharma. - India : Rastogi Publications, 1999. - 660 p.
Includes glossary and index.
Environmental pollution
Ecosystem--Geography
577 / SHA 1999
Ecology and environment / P. D. Sharma. - India : Rastogi Publications, 1999. - 660 p.
Includes glossary and index.
Environmental pollution
Ecosystem--Geography
577 / SHA 1999