Stengel, D. N., & Chaffe-Stengel, P. M. (2011). Working with Economic Indicators: Interpretation and Sources. Business Expert Press.
Παραπομπή Chicago StyleStengel, Donald N., και Priscilla M. Chaffe-Stengel. Working With Economic Indicators: Interpretation and Sources. Business Expert Press, 2011.
Παραπομπή MLAStengel, Donald N., και Priscilla M. Chaffe-Stengel. Working With Economic Indicators: Interpretation and Sources. Business Expert Press, 2011.
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