Attiyeh, R., Lumsden, K., & Bach, G. L. (1970). Macroeconomics: A programmed book (2nd ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Attiyeh, Richard, Keith Lumsden, y George Leland Bach. Macroeconomics: A Programmed Book. 2nd ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1970.
Cita MLA (9a ed.)Attiyeh, Richard, et al. Macroeconomics: A Programmed Book. 2nd ed. Prentice-Hall, 1970.
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