Kratfel, Edward R.,  1938- <br/><br/>
Modern shop mathematics / 
Edward Kratfel. 
 - Reston, Va. :  Reston,  [1975]. 
 - x, 279 p. 
<br/><br/><label>ISBN: </label>0879094907 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shop mathematics.