APA استشهاد

Randall, A. (1981). Resource economics: An economic approach to natural resource and environmental policy. John Wiley & Sons.

استشهاد بنمط شيكاغو

Randall, Alan. Resource Economics: An Economic Approach to Natural Resource and Environmental Policy. New York: John Wiley & Sons, 1981.

MLA استشهاد

Randall, Alan. Resource Economics: An Economic Approach to Natural Resource and Environmental Policy. John Wiley & Sons, 1981.