APA引文

Philippines. Bureau of Coast and Geodetic Survey. (1940). Northern Luzon, Philippine Islands: Northern sheet. Bureau of Coast and Geodetic Survey.

Chicago Style (17th ed.) Citation

Philippines. Bureau of Coast and Geodetic Survey. Northern Luzon, Philippine Islands: Northern Sheet. Manila: Bureau of Coast and Geodetic Survey, 1940.

MLA引文

Philippines. Bureau of Coast and Geodetic Survey. Northern Luzon, Philippine Islands: Northern Sheet. Bureau of Coast and Geodetic Survey, 1940.

警告：這些引文格式不一定是100％准確.