APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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