APA aipamena

Brubaker, O. J. (1972). Understanding people. Evangelical Teacher Training Association.

Chicago Style aipamena

Brubaker, Omar J. Understanding People. Evangelical Teacher Training Association, 1972.

MLA aipamena

Brubaker, Omar J. Understanding People. Evangelical Teacher Training Association, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.