International Family Planning Perspectives and Digest. Alan Guttmacher Institute.
Citazione stile Chigago Style (17a edizione)International Family Planning Perspectives and Digest. Alan Guttmacher Institute.
Citatione MLA (8a ed.)International Family Planning Perspectives and Digest. Alan Guttmacher Institute.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.