Workshop on Environmental Planning Guidelines for Strategies and Pla ns :    proceedings on environmental planning approaches to the prepara tion of conservation strategies and plans for sustainable development, Turrialba, Costa Rica, 16-19 March 1981. 

 - Turrialba :    CATIE,    1981. 
 - v. :    ill., maps ;    29 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Environmental policy -- Congresses.