Mtchell, William E.. <br/><br/>
Exercise in Macroeconomics: Development of Concepts /  

 - 1st ed /  
 - New York :   McGraw-Hill Book Company. 
 - p412 :  
<br/><br/><label>ISBN: </label>07-042511-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Macroeconomics
<br/><br/><label>Dewey Class. No.: </label>X  / L3M