Hammitt E. W. <br/><br/>
Wildland recreation :  ecology and maanagement / 

 - Canada  John Wiley and sons  1987 
 - ix, 341P.  ill., Hbk 
<br/><br/><label>ISBN: </label>0471872911 
<br/><br/><label>LC Class. No.: </label>GV191.4.H3