Gallopin, Gilberto C. <br/><br/>
Planning methods and the human environment / 
Gilberto C. Gallopin. 
 - Paris :  Unesco,  1981. 
 - 67 p. :  ill.  ;  24 cm. 
 - Socio-economic studies ;  4 .
 - Socio-economic studies (Unesco). .
<br/><br/><label>ISBN: </label>9231018949 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Environmental policy.<br/>Environmental impact analysis.