RT Book T1 Improving evaluations T2 Sage focus editions JF Sage focus editions A2 Datta, Lois-Ellin 1932- A2 Perloff, Robert LA English PP Beverly Hills u.a. PB Sage Publ. YR 1979 ED 1. print. UL https://krimdok.uni-tuebingen.de/Record/043345336 CN 309.1/73/0926 361.6/1/072 SN 0-8039-1240-4 SN 0-8039-1241-2