Envrironmental conservation /
Negi, S.S.
Envrironmental conservation / S.S. Negi, - Dehra Dun, India : Bishen Singh Mahendra. c1983. - 78 p. : ill., maps. ; 23 cm.
Includes references and index.
Mode of access: World Wide Web.
9780203798416 (e-book : PDF)
Environmental.
344.73 / NEE
Envrironmental conservation / S.S. Negi, - Dehra Dun, India : Bishen Singh Mahendra. c1983. - 78 p. : ill., maps. ; 23 cm.
Includes references and index.
Mode of access: World Wide Web.
9780203798416 (e-book : PDF)
Environmental.
344.73 / NEE