Lipsey, Richard G. <br/><br/>
An interoduction to positive economics / 
Richard G. Lipsey  
 - 7th ed. 
 - London :  Oxford University Press,  1989 
 - xxii,808 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0297795562 
<br/><br/><label>Subjects--Topical Terms: </label><br/> economics
<br/><br/><label>Dewey Class. No.: </label>330  / LII