Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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