World directory of environmental organizations  a handbook of national and international organizations and programs--governmental and non-governmental--concerned with protecting the earth's resources 
edited by Thaddeus C. Trzyna and Roberta Childers 
 - 4th ed. 
 - Claremont, Calif.  California Institute of Public Affairs  1992 
 - 231 p. ; 29 cm. 
<br/><br/><label>ISBN: </label>0912102977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--Societies, etc.--Directories<br/>Conservation of natural resources--Societies, etc.--Directories