Cita APA (7th ed.)

Harris, T. (1995). I am OK You are OK (1st.). Arrow Books.

Cita Chicago (17th ed.)

Harris, T. I Am OK You Are OK. 1st. London: Arrow Books, 1995.

Cita MLA (9th ed.)

Harris, T. I Am OK You Are OK. 1st. Arrow Books, 1995.