Gaya APA

Diulio, E, A. (1990). Schaum's Outline of Theory and Problems of Macroeconomics Theory (ed.2). Singapore: McGraw-Hill Book Co..

Gaya MLA

Diulio, Eugene, A.. "Schaum's Outline of Theory and Problems of Macroeconomics Theory". ed.2 Singapore: McGraw-Hill Book Co., 1990. Text.