(2000). Development powered by volunteers. Philippine National Volunteer Service Coordinating Agency.
芝加哥风格引文Development Powered by Volunteers. Quezon City: Philippine National Volunteer Service Coordinating Agency, 2000.
MLA引文Development Powered by Volunteers. Philippine National Volunteer Service Coordinating Agency, 2000.
警告：这些引文格式不一定是100％准确.