Henry, L. (1980). Fertility of marriage: A new method of measurement. United Nations.
Citazione stile Chigago Style (17a edizione)Henry, Louis. Fertility of Marriage: A New Method of Measurement. New York: United Nations, 1980.
Citatione MLA (8a ed.)Henry, Louis. Fertility of Marriage: A New Method of Measurement. United Nations, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.