Watson, C. J., & Billingsley, P. j. a. (1990). Statistics for Management and Economics (4th.). Allyn and Bacon.
Chicago-čujuhus (17. p.)Watson, Collin J., juo Patrick joined author Billingsley. Statistics for Management and Economics. 4th. Boston: Allyn and Bacon, 1990.
MLA-čujuhus (9. p.)Watson, Collin J., juo Patrick joined author Billingsley. Statistics for Management and Economics. 4th. Allyn and Bacon, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.