Tohutoro APA (7th ed.)
Spencer, M. H. (1977). Contemporary macroeconomics (3rd ed.). Worth Publishing.
Tohutoru Kātū Chicago (17th ed.)
Spencer, Milton H. Contemporary Macroeconomics. 3rd ed. New York: Worth Publishing, 1977.
Tohutoro MLA (9th ed.)
Spencer, Milton H. Contemporary Macroeconomics. 3rd ed. Worth Publishing, 1977.
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