Keiser, N. F. (1975). Macroeconomics (2a. ed.). Random House.
Tohutoru Kātū Chicago (17th ed.)Keiser, Norman F. Macroeconomics. 2a. ed. Nueva York: Random House, 1975.
Tohutoro MLA (9th ed.)Keiser, Norman F. Macroeconomics. 2a. ed. Random House, 1975.
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