L. Brue Stanley, & R. McCornnell Campbell. (2007). Study Guide for use with Essentials of Economics. New York: McGraw -Hill.
Trích dẫn kiểu ChicagoL. Brue Stanley, và R. McCornnell Campbell. Study Guide for Use With Essentials of Economics. New York: McGraw -Hill, 2007.
Deismireacht MLAL. Brue Stanley, và R. McCornnell Campbell. Study Guide for Use With Essentials of Economics. New York: McGraw -Hill, 2007.
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