Harris, T. A. (2012). I'm ok - you're ok. Arrow Books.
Chicago Style aipamenaHarris, Thomas A. I'm Ok - You're Ok. London: Arrow Books, 2012.
MLA aipamenaHarris, Thomas A. I'm Ok - You're Ok. Arrow Books, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.