Dyfyniad APA

Alli, B. O. (2001). Fundamental principles of occupational health and safety. International Labour Office.

Dyfyniad Arddull Chicago

Alli, B. O. Fundamental Principles of Occupational Health and Safety. Geneva: International Labour Office, 2001.

Dyfyniad MLA

Alli, B. O. Fundamental Principles of Occupational Health and Safety. International Labour Office, 2001.

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