Helton, Joseph E. , <br/><br/>
Simplified estimating for builders and engineers / 
Joseph E. Helton. 
<br/><br/><label>ISBN: </label>013810144 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Building --Estimates.
<br/><br/><label>LC Class. No.: </label>TH435   / .H44 1985