Healey, J. F. (2012). Statistics: A tool for social research (Ninth edition.). Wadsworth/Cengage Learning.
Chicago (17e ed.) BronvermeldingHealey, Joseph F. Statistics: A Tool for Social Research. Ninth edition. Australia: Wadsworth/Cengage Learning, 2012.
MLA (9e ed.) BronvermeldingHealey, Joseph F. Statistics: A Tool for Social Research. Ninth edition. Wadsworth/Cengage Learning, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.