APA استشهاد

Singh, A. K. (1987). Forest resource, economy and environment. Concept Pub..

استشهاد بنمط شيكاغو

Singh, A. K. Forest Resource, Economy and Environment. New Delhi: Concept Pub., 1987.

MLA استشهاد

Singh, A. K. Forest Resource, Economy and Environment. Concept Pub., 1987.