Παραπομπή APA
Waverman, L., & Erickson, E. W. (1974). The energy question an international failure of policy. Toronto: University of Toronto Press.
Παραπομπή Chicago StyleWaverman, Leonard,, and Edward W. Erickson. The Energy Question an International Failure of Policy. Toronto: University of Toronto Press, 1974.
Παραπομπή MLAWaverman, Leonard,, and Edward W. Erickson. The Energy Question an International Failure of Policy. Toronto: University of Toronto Press, 1974.
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