APA引文

Philippines. National Mapping and Resource Information Authority. (1988). Laoag. National Mapping and Resource Information Authority.

Chicago Style (17th ed.) Citation

Philippines. National Mapping and Resource Information Authority. Laoag. Makati [Metro Manila]: National Mapping and Resource Information Authority, 1988.

MLA引文

Philippines. National Mapping and Resource Information Authority. Laoag. National Mapping and Resource Information Authority, 1988.

警告：這些引文格式不一定是100％准確.