Access :  A directory of contacts, environmental databases, and scientific infraestructure on 175 biosphere reserves in 32 countries 

 - 1 v. :  il. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONSERVACION DE LOS RECURSOS NATURALES--DIRECTORIOS<br/>CONSERVACION DE LOS RECURSOS NATURALES--BASES DE DATOS
<br/><br/><label>Dewey Class. No.: </label>C 333.716  / A2 1993