APA aipamena

TERRY O'BRIEN. (2011). Book of motivation. Rupa Publications.

Chicago Style aipamena

TERRY O'BRIEN. Book of Motivation. New Delhi: Rupa Publications, 2011.

MLA aipamena

TERRY O'BRIEN. Book of Motivation. Rupa Publications, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.