J Lé. Liste des articlesVol. 19, 1964/3Dumont Fernand et Martin Yves — L'analyse des structures sociales régionales. Étude sociologique de la région de Saint-JérômeVol. 19, 1964/4Canadian Population and Northern Colonization. La population canadienne et la colonisation du Grand NordVol. 19, 1964/4Coale Ansley J. and Zelnik Melvin — New Estimates of Fertility and Population in the United States. A study of Annual White Birth from 1855 to 1960 of Completeness of Enumeration in the Censuses from 1880 to 1960Vol. 19, 1964/4Blanchard Raoul — Le Canada françaisVol. 19, 1964/5A discussion on demography