Guidelines :  development of national parks and protected areas for tourism. 

 - Madrid :  World Tourism Organization,  1992. 
 - 53 p. :  ill. ;  30 cm. 
 - Tourism and environment technical series .
<br/><br/><label>ISBN: </label>9284400260  RM98.67 
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--Protection.<br/>Tourist trade.