Christensen, L. B., & Stoup, C. M. (1991). Introduction to statistics for the social and behavioral sciences. Brooks/Cole Pub. Co.
Chicago-viite (17. p.)Christensen, Larry B., ja Charles M. Stoup. Introduction to Statistics for the Social and Behavioral Sciences. Monterey, Calif: Brooks/Cole Pub. Co, 1991.
MLA-viite (9. p.)Christensen, Larry B., ja Charles M. Stoup. Introduction to Statistics for the Social and Behavioral Sciences. Brooks/Cole Pub. Co, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.