Dernburg, Thomas Frederick. Macroeconomics : the measurement, analysis and control of aggrega te economic activity / Thomas F. Dernburg and Duncan M. McDougall. - 6th ed. - London : McGraw-Hill, 1980. - viii, 449 p. : ill. ; 22 cm. Subjects--Topical Terms: Macroeconomics.National income--Accounting. Dewey Class. No.: 339.2 DER