Black, J., & Bradley, J. F. (1980). Essential mathematics for economists (2nd ed.). Wiley.
Cita Chicago Style (17a ed.)Black, John, y J. F. Bradley. Essential Mathematics for Economists. 2nd ed. Chichester [Eng.]: Wiley, 1980.
Cita MLA (9a ed.)Black, John, y J. F. Bradley. Essential Mathematics for Economists. 2nd ed. Wiley, 1980.
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