Praten, C.F. <br/><br/>
Economics of scale in manufacturing industry. 

 - Cambridge.  At the university press.  1971 
 - xii, 347p.  23cm. 
<br/><br/> Includes appendix. 
<br/><br/><label>ISBN: </label>0521096693 
<br/><br/><label>Dewey Class. No.: </label>338.43PRA.