Klee, Gary A. <br/><br/>
Conservation of natural resources   
by Gary A. Klee 
 - Englewood Cliffs  Prentice Hall  1991 
 - xvi, 410p. 
<br/><br/><label>ISBN: </label>0131684698 
<br/><br/><label>Dewey Class. No.: </label>333.720973  / N91;1