OESTERLE (John A.): Justice in Society. Thé State and the Individual, en "Justice", 'Proceedings of The American Catholic Philosophical Association, 1962, págs. 38-48.
Sánchez de la Torre, Angel (1964). OESTERLE (John A.): Justice in Society. Thé State and the Individual, en "Justice", 'Proceedings of The American Catholic Philosophical Association, 1962, págs. 38-48.. ANUARIO DE FILOSOFÍA DEL DERECHO . pp. 489-490.