Emery, Frederick Edmund, <br/><br/>
Towards a social ecology :  contextual appreciation of the future in the present / 
by F. E. Emery and E. L. Trist. 
 - 239 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología humana.
<br/><br/><label>Dewey Class. No.: </label>301.24  / E53t 1972