APA-referens (7:e uppl.)

IBON Foundation. (2000). The state of the Philippine environment (New ed. 2000.). IBON Foundation, Inc.

Chicago-referens (17:e uppl.)

IBON Foundation. The State of the Philippine Environment. New ed. 2000. Sta. Mesa, Manila: IBON Foundation, Inc, 2000.

MLA-referens (9:e uppl.)

IBON Foundation. The State of the Philippine Environment. New ed. 2000. IBON Foundation, Inc, 2000.