Παραπομπή APA
Crosson, P. R., & Frederick, K. D. (1977). The world food situation: Resource and environmental issues in the developing countries and the United States. Washington: Resources for the Future.
Παραπομπή Chicago StyleCrosson, Pierre R., and Kenneth D. Frederick. The World Food Situation: Resource and Environmental Issues in the Developing Countries and the United States. Washington: Resources for the Future, 1977.
Παραπομπή MLACrosson, Pierre R., and Kenneth D. Frederick. The World Food Situation: Resource and Environmental Issues in the Developing Countries and the United States. Washington: Resources for the Future, 1977.
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