Παραπομπή σε μορφή APA (7η εκδ.)

Eagles, P. F. J., McCool, S. S., & Haynes, C. D. (2002). Sustainable tourism in protected areas: Guidelines for planning and management. IUCN.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Eagles, Paul F. J., Stephen S. McCool, και Christopher D. Haynes. Sustainable Tourism in Protected Areas: Guidelines for Planning and Management. Cambridge: IUCN, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Eagles, Paul F. J., et al. Sustainable Tourism in Protected Areas: Guidelines for Planning and Management. IUCN, 2002.