The Population Council. (1970). A manual for surveys of fertility and family planning: Knowledge, attitudes, and practice. The population Council.
Dyfyniad Arddull ChicagoThe Population Council. A Manual for Surveys of Fertility and Family Planning: Knowledge, Attitudes, and Practice. New York: The population Council, 1970.
Dyfyniad MLAThe Population Council. A Manual for Surveys of Fertility and Family Planning: Knowledge, Attitudes, and Practice. The population Council, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.