Lopez, D. F., & Osorio, M. (1973). The nature of contraceptive methods. Family Planning Organization of the Philippines.
Chicago Style (17th ed.) CitationLopez, Danilo F., and Migen Osorio. The Nature of Contraceptive Methods. Manila: Family Planning Organization of the Philippines, 1973.
MLA (9th ed.) CitationLopez, Danilo F., and Migen Osorio. The Nature of Contraceptive Methods. Family Planning Organization of the Philippines, 1973.
Warning: These citations may not always be 100% accurate.