APA Citatie

Duff, J. E., & James E. Duff and Paul Uhrina. (2006). Student Workbook and Activity Guide for Duffy's Collision Repair Fundamentals. Cengage Learning, Inc: Thomson.

Chicago Style citaat

Duff, James E., en James E. Duff and Paul Uhrina. Student Workbook and Activity Guide for Duffy's Collision Repair Fundamentals. Cengage Learning, Inc: Thomson, 2006.

MLA citatie

Duff, James E., en James E. Duff and Paul Uhrina. Student Workbook and Activity Guide for Duffy's Collision Repair Fundamentals. Cengage Learning, Inc: Thomson, 2006.