(2013). WELDING and fabrication workbook: Cengage learning and skills2learn, level 1 & 2. Cengage Learning.
Citazione stile Chigago Style (17a edizione)WELDING and Fabrication Workbook: Cengage Learning and Skills2learn, Level 1 & 2. Cengage Learning, 2013.
Citatione MLA (9a ed.)WELDING and Fabrication Workbook: Cengage Learning and Skills2learn, Level 1 & 2. Cengage Learning, 2013.
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