APA (7th ed.) Citation

(1981). Philippine regional profiles. Ecumenical Center for Development (ECD).

Chicago Style (17th ed.) Citation

Philippine Regional Profiles. Quezon City: Ecumenical Center for Development (ECD), 1981.

MLA (9th ed.) Citation

Philippine Regional Profiles. Ecumenical Center for Development (ECD), 1981.

Warning: These citations may not always be 100% accurate.