Malec, M. A. (1993). Essential statistics for social research (2nd ed., rev. and updated.). Westview Press.
Chicago-referens (17:e uppl.)Malec, Michael A. Essential Statistics for Social Research. 2nd ed., rev. and updated. Boulder, Colo.: Westview Press, 1993.
MLA-referens (8:e uppl.)Malec, Michael A. Essential Statistics for Social Research. 2nd ed., rev. and updated. Westview Press, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.