Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.