Welding level 1  trainee guide 
American Welding Society 
 - 4th ed. 
 - Boston  Pearson  2010 
 - ix,variuos paging  ill.  29cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780136106517  RM267.17 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Welding