International Planned Parenthood Federation. Western Pacific Region & Family Planning Association of Hong Kong. (1971). Responsible parenthood and family life education: Proceedings of the seminar of the Western Pacific Region of the International Planned Parenthood Federation, Hong Kong, 28th September-1st October 1971.
Cita Chicago (17th ed.)International Planned Parenthood Federation. Western Pacific Region i Family Planning Association of Hong Kong. Responsible Parenthood and Family Life Education: Proceedings of the Seminar of the Western Pacific Region of the International Planned Parenthood Federation, Hong Kong, 28th September-1st October 1971. Tokyo, Japan, 1971.
Cita MLA (8th ed.)International Planned Parenthood Federation. Western Pacific Region i Family Planning Association of Hong Kong. Responsible Parenthood and Family Life Education: Proceedings of the Seminar of the Western Pacific Region of the International Planned Parenthood Federation, Hong Kong, 28th September-1st October 1971. 1971.