RT Book T1 Parent child interaction: the socialization process observed in twin and singleton families A1 Lytton, Hugh LA English PP New York u.a. PB Plenum Pr. YR 1980 UL https://krimdok.uni-tuebingen.de/Record/161125681X SN 0306405210 K1 Zwilling : Sozialisation K1 Eltern : Kind : Sozialisation