APA (7th ed.) Zitazioa
Sommer, B. B., & Sommer, R. A Practical Guide to Behavioral Research: Tools and Techniques. Oxford University.
Chicago Style (17th ed.) Zitazioa
Sommer, Barbara Baker, eta Robert Sommer. A Practical Guide to Behavioral Research: Tools and Techniques. Nueva York, EUA: Oxford University.
MLA (9th ed.) Zitazioa
Sommer, Barbara Baker, eta Robert Sommer. A Practical Guide to Behavioral Research: Tools and Techniques. Oxford University.
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