Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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