Ackley Gardner <br/><br/>
Macroeconomics : Theory and practice 
Ackley Gardner 
 - New York  New York, NY , Macmillan PUb. co.  1978 
 - 738p 
<br/><br/><label>ISBN: </label>0-02-9788440-9 
<br/><br/><label>Source: </label>Textbook