Lua APA (7ú heag.)

(2013). WELDING and fabrication workbook: Cengage learning and skills2learn, level 1 & 2. Cengage Learning.

Lua i Stíl Chicago (17ú heag.)

WELDING and Fabrication Workbook: Cengage Learning and Skills2learn, Level 1 & 2. Cengage Learning, 2013.

Lua MLA (9ú heag.)

WELDING and Fabrication Workbook: Cengage Learning and Skills2learn, Level 1 & 2. Cengage Learning, 2013.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.