Philippines. Bureau of Coast and Geodetic Survey. (1940). Central Luzon, Philippine Islands: Western sheet. Coast and Geodetic Survey.
Chicago Style (17th ed.) CitationPhilippines. Bureau of Coast and Geodetic Survey. Central Luzon, Philippine Islands: Western Sheet. Manila: Coast and Geodetic Survey, 1940.
MLA (9th ed.) CitationPhilippines. Bureau of Coast and Geodetic Survey. Central Luzon, Philippine Islands: Western Sheet. Coast and Geodetic Survey, 1940.
Warning: These citations may not always be 100% accurate.