What I have learned : thinking about the future then and now  
/ ed. by Michael Marien and Lane Jennings 
. - London   : Greenwood Press, 1987
. - 204 p.  ; 25 cm. 
<br/><br/>Bibliogr., index 
<br/><br/><label>ISBN: </label>0313250715 
<br/><br/><label>Source: </label> Fonds S.400 
<br/><br/><label>Universal Decimal Class. No.: </label>167.5