(2000). Development powered by volunteers. Philippine National Volunteer Service Coordinating Agency.
Citazione stile Chigago Style (17a edizione)Development Powered by Volunteers. Quezon City: Philippine National Volunteer Service Coordinating Agency, 2000.
Citatione MLA (9a ed.)Development Powered by Volunteers. Philippine National Volunteer Service Coordinating Agency, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.