Philippines. National Mapping and Resource Information Authority. Puerto Princesa. National Mapping and Resource Information Authority, 1975.
Chicago Style (17th ed.) CitationPhilippines. National Mapping and Resource Information Authority. Puerto Princesa. Makati, Metro Manila: National Mapping and Resource Information Authority, 1975.
MLA (9th ed.) CitationPhilippines. National Mapping and Resource Information Authority. Puerto Princesa. National Mapping and Resource Information Authority, 1975.
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