Konkel, James H. <br/><br/>
Rule-of-thumb cost estimating for building mechanical systems :  accurate estimating and budgeting using unit assembly costs / 
James H. Konkel. 
 - New York :  McGraw-Hill,  c1987. 
 - viii, 230 p. :  ill. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070449570 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heating--Estimates.<br/>Air conditioning--Estimates.<br/>Ventilation--Estimates.<br/>Fire detectors--Estimates.
<br/><br/><label>Dewey Class. No.: </label>697  / KON-R