Cita APA (7th ed.)

Von Richthofen, W. (2002). Labour inspection: A guide to the profession. International Labour Office.

Cita Chicago (17th ed.)

Von Richthofen, W. Labour Inspection: A Guide to the Profession. Geneva: International Labour Office, 2002.

Cita MLA (9th ed.)

Von Richthofen, W. Labour Inspection: A Guide to the Profession. International Labour Office, 2002.