APA Style

Negi,S.S, Westlake, M.. (1983). Environmental Conservation (Ref: 3) . Dehra Dun: Bishen Singh Mahendra Pal Singh Dehra Dun.

Chicago Style

Negi,S.S, Westlake, M.. Environmental Conservation (Ref: 3). Dehra Dun: Bishen Singh Mahendra Pal Singh Dehra Dun, 1983. .

MLA Style

Negi,S.S, Westlake, M.. Environmental Conservation (Ref: 3). Dehra Dun: Bishen Singh Mahendra Pal Singh Dehra Dun, 1983. .

Turabian Style

Negi,S.S, Westlake, M.. Environmental Conservation (Ref: 3). Dehra Dun: Bishen Singh Mahendra Pal Singh Dehra Dun, 1983. .