APA引文

Hoff and Overgaard & World Tourism Organization. (1992). Tourism master plan for the Philippines. World Tourism Organization.

Chicago Style (17th ed.) Citation

Hoff and Overgaard and World Tourism Organization. Tourism Master Plan for the Philippines. [Madridn]: World Tourism Organization, 1992.

MLA引文

Hoff and Overgaard and World Tourism Organization. Tourism Master Plan for the Philippines. World Tourism Organization, 1992.