Ecumenical Center for Development. (1982). Philippine regional profiles. Ecumenical Center for Development.
Citazione stile Chigago Style (17a edizione)Ecumenical Center for Development. Philippine Regional Profiles. Quezon City: Ecumenical Center for Development, 1982.
Citatione MLA (9a ed.)Ecumenical Center for Development. Philippine Regional Profiles. Ecumenical Center for Development, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.