APA استشهاد

Gupta, K. (2002). Energy and environment in India: A study of energy management. Gyan Publishing House.

استشهاد بنمط شيكاغو

Gupta, K. Energy and Environment in India: A Study of Energy Management. New Delhi: Gyan Publishing House, 2002.

MLA استشهاد

Gupta, K. Energy and Environment in India: A Study of Energy Management. Gyan Publishing House, 2002.