APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.