Παραπομπή APA

Hughes, P., & Ferrett, E. (2003). Introduction to health and safety at work: The handbook for the NEBOSH national general certificate. Amsterdam: Elsevier.

Παραπομπή Chicago Style

Hughes, Phil, and Ed Ferrett. Introduction to Health and Safety At Work: The Handbook for the NEBOSH National General Certificate. Amsterdam: Elsevier, 2003.

Παραπομπή MLA

Hughes, Phil, and Ed Ferrett. Introduction to Health and Safety At Work: The Handbook for the NEBOSH National General Certificate. Amsterdam: Elsevier, 2003.

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