Dernburg, Thomas F. <br/><br/>
Macroeconomics   : the measurement, analysis, and control of aggregate economic activity /  
Thomas F. Dernburg, Duncan M. McDougall. 
 - 4th ed. 
 - New York :   McGraw-Hill,   [1972] 
 - XIII, 490 p., 4 gráf. :   il. ;   24 cm.