Lua APA (7ú heag.)

KERLINGER, F. N. (1975). Foundations Of Behavioral Research Fred N. Kerlinger. Holt Reinhart and Winston, Inc.

Lua i Stíl Chicago (17ú heag.)

KERLINGER, Fred N. Foundations Of Behavioral Research Fred N. Kerlinger. Holt Reinhart and Winston, Inc, 1975.

Lua MLA (8ú heag.)

KERLINGER, Fred N. Foundations Of Behavioral Research Fred N. Kerlinger. Holt Reinhart and Winston, Inc, 1975.

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