Cita APA (7th ed.)
Diulio, E., & Lipsey, R. G. (1990). Macroeconomics (9th ed.). Harper & Row.
Cita Chicago (17th ed.)
Diulio, Eugene, i Richard G. Lipsey. Macroeconomics. 9th ed. New York: Harper & Row, 1990.
Cita MLA (9th ed.)
Diulio, Eugene, i Richard G. Lipsey. Macroeconomics. 9th ed. Harper & Row, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.