/Hubbard.R.G & O'bbrien .A.P. (2008). Microeconomics (International Edition.). Peasorn:Prentice Hall.
Cita Chicago Style (17a ed.)/Hubbard.R.G y O'bbrien .A.P. Microeconomics. International Edition. United States: Peasorn:Prentice Hall, 2008.
Cita MLA (9a ed.)/Hubbard.R.G y O'bbrien .A.P. Microeconomics. International Edition. Peasorn:Prentice Hall, 2008.
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