Haberler, Gottfried. <br/><br/>
Prosperty and Depression: A theoretical Analysis of Cyclical Movements /  

 - Seventh Impression 1 /  
 - London :   George Allen & Unwin Ltd.. 
 - p.517,xviii :  
<br/><br/><label>Dewey Class. No.: </label>X:742  / G9;2