Philippine Coast and Geodetic Survey. (1982). Tondol, Philippines /produced by authority of the Ministry of National Defense by the Phiippine Coast and Geodetic Survey, A.P. Ventura, Director, as part of the national mapping program and with assistance from UNDP (Ed. 2 1982.). Philippine Coast and Geodetic Survey.
Chicago Style (17th ed.) CitationPhilippine Coast and Geodetic Survey. Tondol, Philippines /produced by Authority of the Ministry of National Defense by the Phiippine Coast and Geodetic Survey, A.P. Ventura, Director, as Part of the National Mapping Program and with Assistance from UNDP. Ed. 2 1982. Manila: Philippine Coast and Geodetic Survey, 1982.
MLA (9th ed.) CitationPhilippine Coast and Geodetic Survey. Tondol, Philippines /produced by Authority of the Ministry of National Defense by the Phiippine Coast and Geodetic Survey, A.P. Ventura, Director, as Part of the National Mapping Program and with Assistance from UNDP. Ed. 2 1982. Philippine Coast and Geodetic Survey, 1982.