Stengel, D. N., & Chaffe-Stengel, P. M. (2012). Working with economic indicators: Interpretation and sources. Business Expert Press.
Cita Chicago (17th ed.)Stengel, Donald N., i Priscilla M. Chaffe-Stengel. Working with Economic Indicators: Interpretation and Sources. [New York, N.Y.] (222 East 46th Street, New York, NY 10017): Business Expert Press, 2012.
Cita MLA (9th ed.)Stengel, Donald N., i Priscilla M. Chaffe-Stengel. Working with Economic Indicators: Interpretation and Sources. Business Expert Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.