Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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