APA citiranje

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

Chicago Style (17th ed.) Citation

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

MLA citiranje

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