Pietrasinski, Zbigniew and Skibicki, Waclaw <br/><br/>
The art of learning 

 - London  ; Pergamon Press  , 1969 
 - vii,138p. 
<br/><br/><label>ISBN: </label> 40.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Learning
<br/><br/><label>Dewey Class. No.: </label>370.1523  / PIE