Ursul, A. D. <br/><br/>
Philosophy and the ecological problems of civilisation 

 - Moscow  Progress Publishers  1983 
 - 410p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy and civilization
<br/><br/><label>LC Class. No.: </label>IDS B59.P5