The encyclical "Humani Generis":
Cotter, A.C.
The encyclical "Humani Generis": with a commentary A.C. Cotter SJ - Weston, Mass. Weston College Press 1951
Pius XII -"Humani generis"
The encyclical "Humani Generis": with a commentary A.C. Cotter SJ - Weston, Mass. Weston College Press 1951
Pius XII -"Humani generis"