APA استشهاد

Thakur, A. K., & Somra, S. S. (2012). Environment and economic development. Regal Publications.

استشهاد بنمط شيكاغو

Thakur, Anil Kumar, و S. S. Somra. Environment and Economic Development. New Delhi: Regal Publications, 2012.

MLA استشهاد

Thakur, Anil Kumar, و S. S. Somra. Environment and Economic Development. Regal Publications, 2012.