Boyes, William J..
Macroeconomics: intermediate theory and policy /
William J. Boyes 
. - 3rd edition 
. - Cincinnati : South-Western Publishing Co.,  College Division,  1992 
. - xx, 471 p.  ill., scem., tab.  24 cm. 
<br/><label>  ISBN: </label>0-538-81282-6