APA (7th ed.) Citation

Arora, M., Kumar, A., & Raj, G. (1991). Encyclopaedia of energy. Anmol Pub..

Chicago Style (17th ed.) Citation

Arora, Madhu, Ajay Kumar, and Gurdeep Raj. Encyclopaedia of Energy. Daryaganj, New Delhi: Anmol Pub., 1991.

MLA (9th ed.) Citation

Arora, Madhu, et al. Encyclopaedia of Energy. Anmol Pub., 1991.