Παραπομπή APA

Newsome, D., Moore, S. A., & Dowling, R. K. (2002). Natural area tourism: Ecology, impacts, and management. Channel View Publications.

Παραπομπή Chicago Style

Newsome, David, Susan A. Moore, και Ross Kingston Dowling. Natural Area Tourism: Ecology, Impacts, and Management. Clevedon ; Buffalo: Channel View Publications, 2002.

Παραπομπή MLA

Newsome, David, et al. Natural Area Tourism: Ecology, Impacts, and Management. Channel View Publications, 2002.