Gordon, T. (1970). P E T parent effectiveness training: The tested new way to raiseresponsible children. Peter H. Wyden.
Citazione stile Chigago Style (17a edizione)Gordon, Thomas. P E T Parent Effectiveness Training: The Tested New Way to Raiseresponsible Children. Peter H. Wyden, 1970.
Citatione MLA (9a ed.)Gordon, Thomas. P E T Parent Effectiveness Training: The Tested New Way to Raiseresponsible Children. Peter H. Wyden, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.