Merrill, W. C., & Fox, K. A. (1970). Introduction to economic statistics. Wiley.
Lua i Stíl Chicago (17ú heag.)Merrill, William Charles, agus Karl August Fox. Introduction to Economic Statistics. New York: Wiley, 1970.
Lua MLA (9ú heag.)Merrill, William Charles, agus Karl August Fox. Introduction to Economic Statistics. Wiley, 1970.
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