Riggs/J.L/ Bedworth/ D.D.  <br/><br/>
Engineering Economics 

 - 4 
 -  Tata Mc Graw hill  1996 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>economics
<br/><br/><label>Dewey Class. No.: </label>658.15  / RIG