APA aipamena

Popham, W. J., & Sirotnik, K. A. (1973). Educational statistics: Use and interpretation (2nd ed.). Harper and Row.

Chicago Style aipamena

Popham, W. James, and Kenneth A. Sirotnik. Educational Statistics: Use and Interpretation. 2nd ed. New York: Harper and Row, 1973.

MLA aipamena

Popham, W. James, and Kenneth A. Sirotnik. Educational Statistics: Use and Interpretation. 2nd ed. Harper and Row, 1973.