Gabadinho, A., & Wanner, P. (1999). Fertility and family surveys in countries of the ECE region: Standard country report, Switzerland. United Nations.
Citazione stile Chigago Style (17a edizione)Gabadinho, Alexis, e Philippe Wanner. Fertility and Family Surveys in Countries of the ECE Region: Standard Country Report, Switzerland. New York ; Geneva: United Nations, 1999.
Citatione MLA (9a ed.)Gabadinho, Alexis, e Philippe Wanner. Fertility and Family Surveys in Countries of the ECE Region: Standard Country Report, Switzerland. United Nations, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.