Pirog Robert L <br/><br/>
Energy economics theory and practice 
Pirog Robert L; Stamos Stephen L 
 - New Jersey  New Jersey, Prentice-Hall  1987 
 - viii,328 
<br/><br/><label>ISBN: </label>0-13-277245-0 
<br/><br/><label>Source: </label>Textbook