@book{5698,
	author = {Calvez, Jean-Yves and Perrin, Jacques},
	title = {The church and social teaching of the popes from Leo XIII to Pius XII, 1878-1958},
	publisher = {H. RegneryCo.},
	year = {1961.},
	address = {Chicago},
	note = {Translation of : Eglise et societe economique.}
}