HEALEY JOSEPH F. (1999). STATISTICS: A TOOL FOR SOCIAL RESEARCH (5TH.). INTERNATIONAL THOMSON BUSINESS PRESS.
Chicago (17e ed.) BronvermeldingHEALEY JOSEPH F. STATISTICS: A TOOL FOR SOCIAL RESEARCH. 5TH. BOSTON: INTERNATIONAL THOMSON BUSINESS PRESS, 1999.
MLA (9e ed.) BronvermeldingHEALEY JOSEPH F. STATISTICS: A TOOL FOR SOCIAL RESEARCH. 5TH. INTERNATIONAL THOMSON BUSINESS PRESS, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.