Konkel, James H. <br/><br/>
Rule of Thumb Cost Estimating for Building Mechanical Systems 

 - New York  McGraw-Hill  1987 
 - p.230 
<br/><br/><label>ISBN: </label>9780070449572 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sample Estimate<br/>Balancing
<br/><br/><label>Dewey Class. No.: </label>697 K82R