APA (7th ed.) Citation

Gray, W. S., & Liguori, S. C. (2003). Hotel and motel management and operations (4th ed.). PH/PTR.

Chicago Style (17th ed.) Citation

Gray, William S., and Salvatore C. Liguori. Hotel and Motel Management and Operations. 4th ed. Upper Saddle River, N.J: PH/PTR, 2003.

MLA (9th ed.) Citation

Gray, William S., and Salvatore C. Liguori. Hotel and Motel Management and Operations. 4th ed. PH/PTR, 2003.