Konkel, James H. <br/><br/>
Rule-of-thumb cost estimating for building mechanical systems: accurate estimati 

 - New York  McGraw-Hill  1987 
 - viii, 230 p. 
<br/><br/><label>ISBN: </label>70449570 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ventilation-estimates
<br/><br/><label>Dewey Class. No.: </label>697  / KON