APA (7th ed.) Citation

Sandoval, M. P., & Mamaril, F. B. (1970). Hydrogeology of central Luzon. Republic of the Philippines, Bureau of Mines.

Chicago Style (17th ed.) Citation

Sandoval, Mario P., and Francisco B. Mamaril. Hydrogeology of Central Luzon. Manila: Republic of the Philippines, Bureau of Mines, 1970.

MLA (9th ed.) Citation

Sandoval, Mario P., and Francisco B. Mamaril. Hydrogeology of Central Luzon. Republic of the Philippines, Bureau of Mines, 1970.