I put dobson (i read the copies my mom still had) and ezzo. other for me was also tripp. my mom visited here after dd was born and stayed for a month. she brought all the gbd books i had ordered since we were punitive up until late june of last year. she and i talked about gbd a lot. she got really sad at one point and said she wished she known other ways to parent when my sisters and i were little.
I couldn't bring myself to burn the tripp book we brought with us when we moved so i had my mom take it back on the condition that she not give it to anyone. i wish i'd burned it. that was the one that convinced me to spank.