1. Welding
Author: / by Larry Jeffus and Harold V. Johnson
Library: Central Library, Center of Documentation and Supply of Scientific Resources (East Azarbaijan)
Subject: Welding,Welding--Programmed instruction
Classification :
TS227
.
J4181
1988
2. Welding :principles and applications
Author: Jeffus, Larry F.
Library: Library of Razi Metallurgical Research Center (Tehran)
Subject: ، Welding,Programmed instruction ، Welding
Classification :
TS
227
.
J418
2012
3. Welding :principles and applications
Author: Jeffus, Larry F.
Library: Library of Razi Metallurgical Research Center (Tehran)
Subject: ، Welding,Programmed instruction ، Welding
Classification :
TS
227
.
J418
2012
