APA (7e ed.) Bronvermelding

Hughes, P., & Ferrett, E. (2009). Introduction to health and safety at work: The handbook for the NEBOSH national general certificate (4th ed.). Elsevier.

Chicago (17e ed.) Bronvermelding

Hughes, Phil, en Ed Ferrett. Introduction to Health and Safety at Work: The Handbook for the NEBOSH National General Certificate. 4th ed. Amsterdam: Elsevier, 2009.

MLA (8e ed.) Bronvermelding

Hughes, Phil, en Ed Ferrett. Introduction to Health and Safety at Work: The Handbook for the NEBOSH National General Certificate. 4th ed. Elsevier, 2009.