Robert M. Gagné <br/><br/>
The Conditions of Learning 

 - 2nd Edition 
 - London,New York  Holt, Rinehart & Winston  1973 
 - 407p  23cm 
<br/><br/><label>ISBN: </label>039100693 
<br/><br/><label>LC Class. No.: </label>78115178 
<br/><br/><label>Dewey Class. No.: </label>370.152 G135c