Combination welding : dot 819 : instructor's guide to competency-based eduction (CBE), instructor's guide
Combination welding : dot 819 : instructor's guide to competency-based eduction (CBE), instructor's guide
- Washington, D.C. U.S. Department of Labor c1986
- [various pagings] ; 27 cm. 27 cm
Welding -- Instructor's Guide
TS 227 .C66 1986
Welding -- Instructor's Guide
TS 227 .C66 1986