Lipsey, Richard G. <br/><br/>
An introduction to positive economics / 
Richard G. Lipsey and K. Alec Chrystal. 
 - Eighth edition. 
 - xxiv, 919 pages ;  25 cm. 
<br/><br/> Includes glossary and index. 
<br/><br/><label>ISBN: </label>0194424545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics