APA aipamena

Philippines. National Mapping & Resource Information Authority. Laoag. National Mapping & Resource Information Authority, 1990.

Chicago Style aipamena

Philippines. National Mapping & Resource Information Authority. Laoag. Makati, Metro Manila: National Mapping & Resource Information Authority, 1990.

MLA aipamena

Philippines. National Mapping & Resource Information Authority. Laoag. National Mapping & Resource Information Authority, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.