Citazione Stile APA (7a Edizione)

Harris, T. A. (1969). I'm OK, you're OK: A practical guide to transactional analysis. Harper & Row.

Citazione stile Chigago Style (17a edizione)

Harris, Thomas Anthony. I'm OK, You're OK: A Practical Guide to Transactional Analysis. New York: Harper & Row, 1969.

Citatione MLA (9a ed.)

Harris, Thomas Anthony. I'm OK, You're OK: A Practical Guide to Transactional Analysis. Harper & Row, 1969.