APA Edition Citation

Frankel, P. L., Jhirad, D., & Mc Nelis, B. (1990). Nonconventional energy. Wiley Eastern Ltd.

Chicago Edition Citation

Frankel, Peter L., David Jhirad, and Bernard Mc Nelis. Nonconventional Energy. New Delhi: Wiley Eastern Ltd, 1990.

MLA Edition Citation

Frankel, Peter L., et al. Nonconventional Energy. Wiley Eastern Ltd, 1990.