APA (7th ed.) Citation

Zarco, R. M. (1975). Two research monographs on drug abuse in the Philippines. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Zarco, Ricardo M. Two Research Monographs on Drug Abuse in the Philippines. Manila: Govt. Print. Off, 1975.

MLA (9th ed.) Citation

Zarco, Ricardo M. Two Research Monographs on Drug Abuse in the Philippines. Govt. Print. Off, 1975.