Dyfyniad APA

Ridley, J. (2002). Safety with machinery. Butterworth- Heinemann.

Dyfyniad Arddull Chicago

Ridley, John. Safety with Machinery. Oxford: Butterworth- Heinemann, 2002.

Dyfyniad MLA

Ridley, John. Safety with Machinery. Butterworth- Heinemann, 2002.

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