Lua APA (7ú heag.)

Likert, R., & Hayes, S. P. (1957). Some applications of behavioural research. UNESCO.

Lua i Stíl Chicago (17ú heag.)

Likert, Rensis, agus Samuel Perkins Hayes. Some Applications of Behavioural Research. París: UNESCO, 1957.

Lua MLA (9ú heag.)

Likert, Rensis, agus Samuel Perkins Hayes. Some Applications of Behavioural Research. UNESCO, 1957.

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