Dyfyniad APA

Goetsch, D. L. (2011). Occupational safety and health for technologists, engineers, and managers (7th ed.). Prentice Hall.

Dyfyniad Arddull Chicago

Goetsch, David L. Occupational Safety and Health for Technologists, Engineers, and Managers. 7th ed. Upper Saddle River, N.J: Prentice Hall, 2011.

Dyfyniad MLA

Goetsch, David L. Occupational Safety and Health for Technologists, Engineers, and Managers. 7th ed. Prentice Hall, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.