Nijkamp P Ed. <br/><br/>
Environmental economics. 2V. 
Nijkamp P Ed. 
 - Leiden  Martinus Nijhoff           1976 
 -  V1: Theories. (122p; Bibliography chapterwise) .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:(G:55), L6.1-L6.2