APA (7th ed.) Citation

Davidoff, P. G., Davidoff, D. S., & Eyre, J. D. (1988). Tourism geography. National Publishers.

Chicago Style (17th ed.) Citation

Davidoff, Philip G., Doris S. Davidoff, and J. Douglas Eyre. Tourism Geography. Elmsford, N.Y: National Publishers, 1988.

MLA (9th ed.) Citation

Davidoff, Philip G., et al. Tourism Geography. National Publishers, 1988.