APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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