Style de citation APA (7e éd.)

Efford, I. E., & Smith, B. M. (1972). Energy and the environment. Institute of Resource Ecology, University of British Columbia.

Style de citation Chicago (17e éd.)

Efford, Ian E., et Barbara M. Smith. Energy and the Environment. Vancouver: Institute of Resource Ecology, University of British Columbia, 1972.

Style de citation MLA (9e éd.)

Efford, Ian E., et Barbara M. Smith. Energy and the Environment. Institute of Resource Ecology, University of British Columbia, 1972.