Cita APA (7th ed.)
Spencer, M. H. (1980). Contemporary macroeconomics (4th ed.). Worth Publishers.
Cita Chicago (17th ed.)
Spencer, Milton H. Contemporary Macroeconomics. 4th ed. New York: Worth Publishers, 1980.
Cita MLA (9th ed.)
Spencer, Milton H. Contemporary Macroeconomics. 4th ed. Worth Publishers, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.