Samuelson P. <br/><br/>
Microeconomics:  A Version of Economics / 
Samuelson P. Nordhaus W.D. 
 - New York  McGraw - Hill Book Company,  1989. 
 - 658 p. 
<br/><br/>n/2867,n/2825,n/2826,n/2875 
<br/><br/><label>ISBN: </label>0-07-054787-1