APA ציטוט

Philippines. Environmental Management Bureau. (1989). Ecological profile of Batangas. The Bureau.

Chicago Style (17th ed.) Citation

Philippines. Environmental Management Bureau. Ecological Profile of Batangas. [Quezon City]: The Bureau, 1989.

ציטוט MLA

Philippines. Environmental Management Bureau. Ecological Profile of Batangas. The Bureau, 1989.