Protected areas of the world  : a review of national systems 

 - Gland, Switzerland :  International Union for Conservation of Nature and Natural Resources,  1992- 
 - v. 
<br/><br/> La biblioteca tiene : v.4 Nearctic and Neotropical 
<br/><br/><label>LCCN: </label>42526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Áreas protegidas.<br/>Parques nacionales--Directorios.<br/>Recursos naturales--Conservación.
<br/><br/><label>Dewey Class. No.: </label>719.32  / W6