Παραπομπή σε μορφή APA (7η εκδ.)

O'Riordan, T., & D'Arge, R. C. (1981). Progress in resource management and environmental planning. John Wiley and Sons.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Riordan, Timothy, και Ralph C. D'Arge. Progress in Resource Management and Environmental Planning. Chichester: John Wiley and Sons, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

O'Riordan, Timothy, και Ralph C. D'Arge. Progress in Resource Management and Environmental Planning. John Wiley and Sons, 1981.