APA (7th ed.) Citation

Weaver, D. B., & Backman, K. F. (2001). The encyclopedia of ecotourism. CABI Pub.

Chicago Style (17th ed.) Citation

Weaver, David B., and Kenneth F. Backman. The Encyclopedia of Ecotourism. Oxon, UK: CABI Pub, 2001.

MLA (9th ed.) Citation

Weaver, David B., and Kenneth F. Backman. The Encyclopedia of Ecotourism. CABI Pub, 2001.