Jensen, Cecil Howard <br/><br/>
Interpreting engineering drawings / 
Cecil H. Jensen, Jay D. Helsel 
 - 7th ed. 
 - Clifton Park, NY :  Thomson/Delmar Learning,  c2007 
 - xvi, 511 p. :  ill. ;  28 cm. 
 - Drafting and design series .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>1418055735 (pbk.) 9781418055738 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering drawings