Watson, C. J., & Billingsley, P. j. a. (1990). Statistics for Management and Economics (4th.). Allyn and Bacon.
Chicago-viite (17. p.)Watson, Collin J., ja Patrick joined author Billingsley. Statistics for Management and Economics. 4th. Boston: Allyn and Bacon, 1990.
MLA-viite (9. p.)Watson, Collin J., ja Patrick joined author Billingsley. Statistics for Management and Economics. 4th. Allyn and Bacon, 1990.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.