Philippines. National Mapping and Resource Information Authority. Puerto Princesa. National Mapping and Resource Information Authority, 1975.
Dyfyniad Arddull ChicagoPhilippines. National Mapping and Resource Information Authority. Puerto Princesa. Makati, Metro Manila: National Mapping and Resource Information Authority, 1975.
Dyfyniad MLAPhilippines. National Mapping and Resource Information Authority. Puerto Princesa. National Mapping and Resource Information Authority, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.