Ruggles, Philip Kent. <br/><br/>
Printing estimating :  principles and practices / 
Philip Kent Ruggles. 
 - 3rd ed. 
 - Boston. :  Breton Publishers ,  c1979. 
 - vii, 358 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0827338058 (hbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Printing--Estimates.