एपीए उद्धरण

Singh,A K. (1987). Forest resources,economy and environment. Concept Publishing Co.

शिकागो स्टाइल उद्धरण

Singh,A K. Forest Resources,economy and Environment. New Delhi: Concept Publishing Co, 1987.

एमएलए उद्धरण

Singh,A K. Forest Resources,economy and Environment. Concept Publishing Co, 1987.