APA (7th ed.) Citation

Libosada, C. M. (1998). Ecotourism in the Philippines. Bookmark.

Chicago Style (17th ed.) Citation

Libosada, Carlos M. Ecotourism in the Philippines. Makati City: Bookmark, 1998.

MLA (9th ed.) Citation

Libosada, Carlos M. Ecotourism in the Philippines. Bookmark, 1998.