Kerlinger, F. N. (1964). Foundations of behavioral research: Educational and psychological inquiry. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Kerlinger, Frederick Nichols. Foundations of Behavioral Research: Educational and Psychological Inquiry. New York: Holt, Rinehart and Winston, 1964.
Lua MLA (9ú heag.)Kerlinger, Frederick Nichols. Foundations of Behavioral Research: Educational and Psychological Inquiry. Holt, Rinehart and Winston, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.