APA (7th ed.) Citation

Gray, W. S., & Liguori, S. C. (1980). Hotel and motel management and operations. National Book Store.

Chicago Style (17th ed.) Citation

Gray, William S., and Salvatore C. Liguori. Hotel and Motel Management and Operations. Manila: National Book Store, 1980.

MLA (9th ed.) Citation

Gray, William S., and Salvatore C. Liguori. Hotel and Motel Management and Operations. National Book Store, 1980.