Marcum, John P., « Explaining Fertility Differences among U.S. Protestants », Social Forces, vol. 60, no 2, , p. 532–43 (DOI10.2307/2578449, JSTOR2578449)
Marcum, John P., « Explaining Fertility Differences among U.S. Protestants », Social Forces, vol. 60, no 2, , p. 532–43 (DOI10.2307/2578449, JSTOR2578449)