Lipsey, Richard G. <br/><br/>
An introduction to positive economics/ 
By G. Richards Lipsey 
 - 6th ed. 
 - USA:London  English Language Book Sociey,  c1983. 
 - xxv.; 790p.:  ill.;  24cm. 
<br/><br/>Include index 
<br/><br/><label>ISBN: </label>0297782665 
<br/><br/><label>Source: </label>B-4694 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Positive economics
<br/><br/><label>LC Class. No.: </label>HB159.L56   / .L56 1983