APA aipamena

HARRIS , T. (1989). I'M OK - YOU'RE OK. STERLING PUB.

Chicago Style aipamena

HARRIS , T.A. I'M OK - YOU'RE OK. STERLING PUB, 1989.

MLA aipamena

HARRIS , T.A. I'M OK - YOU'RE OK. STERLING PUB, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.