APA (7th ed.) Citation

Rotor, N. S. (1980). Introduction to Philippine tourism. Integrated Research Center, De La Salle University.

Chicago Style (17th ed.) Citation

Rotor, Nilda Servando. Introduction to Philippine Tourism. Manila: Integrated Research Center, De La Salle University, 1980.

MLA (9th ed.) Citation

Rotor, Nilda Servando. Introduction to Philippine Tourism. Integrated Research Center, De La Salle University, 1980.