Lua APA (7ú heag.)

Carmines, E. G., & Zeller, R. A. (1979). Reliability and validity assessment. Sage Publications.

Lua i Stíl Chicago (17ú heag.)

Carmines, Edward G., agus Richard A. Zeller. Reliability and Validity Assessment. Beverly Hills, Calif.: Sage Publications, 1979.

Lua MLA (8ú heag.)

Carmines, Edward G., agus Richard A. Zeller. Reliability and Validity Assessment. Sage Publications, 1979.

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