APA (7th ed.) Citation

IBON Foundation & IBON Databank and Research Center. (2000). The State of the Philippine environment (3rd ed.). IBON Books.

Chicago Style (17th ed.) Citation

IBON Foundation and IBON Databank and Research Center. The State of the Philippine Environment. 3rd ed. Quezon City: IBON Books, 2000.

MLA (9th ed.) Citation

IBON Foundation and IBON Databank and Research Center. The State of the Philippine Environment. 3rd ed. IBON Books, 2000.