Bogue, D. J., & Nelson, J. (1971). The fertility components and contraceptive history techniques for measuring contraceptive use-effectiveness. Community and Family Study Center.
Chicago-Zitierstil (17. Ausg.)Bogue, Donald J., und James Nelson. The Fertility Components and Contraceptive History Techniques for Measuring Contraceptive Use-effectiveness. Chicago, Ill: Community and Family Study Center, 1971.
MLA-Zitierstil (9. Ausg.)Bogue, Donald J., und James Nelson. The Fertility Components and Contraceptive History Techniques for Measuring Contraceptive Use-effectiveness. Community and Family Study Center, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.