APA (7e ed.) Bronvermelding
Popham, W. J., & Sirotnik, K. A. (1973). Educational statistics: Use and interpretation (2nd ed.). Harper and Row.
Chicago (17e ed.) Bronvermelding
Popham, W. James, en Kenneth A. Sirotnik. Educational Statistics: Use and Interpretation. 2nd ed. New York: Harper and Row, 1973.
MLA (9e ed.) Bronvermelding
Popham, W. James, en Kenneth A. Sirotnik. Educational Statistics: Use and Interpretation. 2nd ed. Harper and Row, 1973.
Let op: Deze citaties zijn niet altijd 100% accuraat.