APA (7th ed.) Citation
Gordon, T. (1975). P.E.T. Parent effectiveness Training: The tested new way to raise responsible children. Penguin.
Chicago Style (17th ed.) Citation
Gordon, Thomas. P.E.T. Parent Effectiveness Training: The Tested New Way to Raise Responsible Children. New York: Penguin, 1975.
MLA (9th ed.) Citation
Gordon, Thomas. P.E.T. Parent Effectiveness Training: The Tested New Way to Raise Responsible Children. Penguin, 1975.
Warning: These citations may not always be 100% accurate.