Birdie G S  <br/><br/>
A Textbook of Estimating and Costing (Civil Engineering ) 7th  Textual Documents  
Birdie G S  
 - 7th ED 
 -  Dhanpat Rai Pub. Company  2015 
 - 1026 
<br/><br/><label>ISBN: </label>978-93-8-4559-51-9   
<br/><br/><label>Dewey Class. No.: </label>624