APA引文

Philippines. National Mapping & Resource Information Authority. Legazpi City. National Mapping and Resource Information Authority, 1989.

芝加哥风格引文

Philippines. National Mapping & Resource Information Authority. Legazpi City. Makati, Metro Manila: National Mapping and Resource Information Authority, 1989.

MLA引文

Philippines. National Mapping & Resource Information Authority. Legazpi City. National Mapping and Resource Information Authority, 1989.

警告:这些引文格式不一定是100%准确.