Moore, Alan W. <br/><br/>
Tour guides as a factor in national park management / 
Alan W. Moore. 
 -  1981. 
 - 12-15 p. 
<br/><br/> BIB Now: 5116 
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Dewey Class. No.: </label>333.783