00503cam a2200193 4500 55682772 TxAuBib 19990618120000.0 990618s1976||||||||||||||||||||||||und|u 9780671224066 0671224069 TxAuBib Gordon, Thomas. P.E.T. in action. Wyden Books, 1976. 19990618. Parent and child United States. Child rearing.