Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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