D'Arcy, F. (November 1977). "The Malthusian League and the resistance to birth control propaganda in late Victorian Britain". Population Studies: A Journal of Demography. 31 (3): 429–448. doi:10.1080/00324728.1977.10412759. JSTOR2173367.
D'Arcy, F. (November 1977). "The Malthusian League and the resistance to birth control propaganda in late Victorian Britain". Population Studies: A Journal of Demography. 31 (3): 429–448. doi:10.1080/00324728.1977.10412759. JSTOR2173367.