Cita APA (7th ed.)

Webb, M. G., & Ricketts, M. J. (1980). The economics of energy. Macmillan.

Cita Chicago (17th ed.)

Webb, Michael G., i Martin J. Ricketts. The Economics of Energy. London: Macmillan, 1980.

Cita MLA (8th ed.)

Webb, Michael G., i Martin J. Ricketts. The Economics of Energy. Macmillan, 1980.