Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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