Dyfyniad APA

Johnson, D. (2012). Jobsite first aid: A field guide for the construction industry. Delmar Cengage Learning.

Dyfyniad Arddull Chicago

Johnson, Dan. Jobsite First Aid: A Field Guide for the Construction Industry. Clifton Park, N.Y.: Delmar Cengage Learning, 2012.

Dyfyniad MLA

Johnson, Dan. Jobsite First Aid: A Field Guide for the Construction Industry. Delmar Cengage Learning, 2012.

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