Gwartney,James D. <br/><br/>
Essentials of economics 
/ James D.Gwartney,Richard Stroup,J.R.Clark 
. - New York  : Academic press, 1982
. - 429 p.  ; 26 cm. 
<br/><br/><label>ISBN: </label>0123110300 
<br/><br/><label>Source: </label> Fonds s.400 
<br/><br/><label>Universal Decimal Class. No.: </label>330.