Gee, C. Y., Choy, D. J., & Makens, J. C. (1984). The travel industry. AVI.
Cita Chicago Style (17a ed.)Gee, Chuck Y., Dexter J.L Choy, y James C. Makens. The Travel Industry. Connecticut: AVI, 1984.
Cita MLA (8a ed.)Gee, Chuck Y., et al. The Travel Industry. AVI, 1984.
Precaución: Estas citas no son 100% exactas.