Zbigniew Pietrasinski <br/><br/>
The Art of Learning 

 - London   Pergamon Press  1969 
 - 138p  20cm 
<br/><br/> translated from Poland by Waclaw Skibicki 
<br/><br/><label>LC Class. No.: </label>6822082 
<br/><br/><label>Dewey Class. No.: </label>153.15 P625t