Gordon, T. (1970). P E T parent effectiveness training: The tested new way to raiseresponsible children. Peter H. Wyden.
Čikaški stil citiranja (17. izdanje)Gordon, Thomas. P E T Parent Effectiveness Training: The Tested New Way to Raiseresponsible Children. Peter H. Wyden, 1970.
MLA način citiranja (9. izdanje)Gordon, Thomas. P E T Parent Effectiveness Training: The Tested New Way to Raiseresponsible Children. Peter H. Wyden, 1970.
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