Παραπομπή σε μορφή APA (7η εκδ.)

Randal, A. (1987). Resource economocs: An economic approach to natural resourse and environmental policy. John Wiley & Sons.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Randal, Alan. Resource Economocs: An Economic Approach to Natural Resourse and Environmental Policy. New York: John Wiley & Sons, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Randal, Alan. Resource Economocs: An Economic Approach to Natural Resourse and Environmental Policy. John Wiley & Sons, 1987.