APA (7e ed.) Bronvermelding

Watt, L. (1929). Catholic social principles: A commentary on the papal encyclical Rerum novarum. Burns, Oates & Washbourne ltd..

Chicago (17e ed.) Bronvermelding

Watt, Lewis. Catholic Social Principles: A Commentary on the Papal Encyclical Rerum Novarum. London: Burns, Oates & Washbourne ltd., 1929.

MLA (8e ed.) Bronvermelding

Watt, Lewis. Catholic Social Principles: A Commentary on the Papal Encyclical Rerum Novarum. Burns, Oates & Washbourne ltd., 1929.