Lua APA (7ú heag.)

Sommer, R. (1997). A practical guide to behavioral research: Tools and techniques (4th ed.). OUP.

Lua i Stíl Chicago (17ú heag.)

Sommer, Robert. A Practical Guide to Behavioral Research: Tools and Techniques. 4th ed. New York: OUP, 1997.

Lua MLA (9ú heag.)

Sommer, Robert. A Practical Guide to Behavioral Research: Tools and Techniques. 4th ed. OUP, 1997.

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