Koellhoffer, Leonard <br/><br/>
Manual de soldadura 
Leonard Koellhoffer 
 - México D.F.  Limusa  2011 
 - 508 p. 
<br/><br/><label>ISBN: </label>9789681849269 
<br/><br/><label>Dewey Class. No.: </label>671.52  / K71/2011