Não informado. (1963). Studies in Family Planning. Population Council.
Chicagoスタイル(17版)引用形式Não informado. Studies in Family Planning. New York: Population Council, 1963.
MLA(8版)引用形式Não informado. Studies in Family Planning. Population Council, 1963.
警告: この引用は必ずしも正確ではありません.