Riggleman, J. R., & Frisbee, I. N. (1951). Business statistics. McGraw-Hill.
Cita Chicago Style (17a ed.)Riggleman, John Randolph, y Ira N. Frisbee. Business Statistics. N. York: McGraw-Hill, 1951.
Cita MLA (9a ed.)Riggleman, John Randolph, y Ira N. Frisbee. Business Statistics. McGraw-Hill, 1951.
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