APA Citation

Umana, A., Desai, A. V., Martinez-Alier, J., Hurst, C., & Delgado, J. F. I. (1990). Energy economics. New Delhi: Wiley Eastern Limited.

Chicago Style Citation

Umana, Alvaro, Ashok V. Desai, Juan Martinez-Alier, Christopher Hurst, and Jose Fernando Isaza Delgado. Energy Economics. New Delhi: Wiley Eastern Limited, 1990.

MLA Citation

Umana, Alvaro, et al. Energy Economics. New Delhi: Wiley Eastern Limited, 1990.

Warning: These citations may not always be 100% accurate.