RT Book T1 Towards a social ecology: contextual appreciation of the future in the present A1 Emery, Frederick E. A1 Trist, Eric L. A2 Trist, Eric L. LA English PP London PB Plenum Pr. YR 1972 UL https://krimdok.uni-tuebingen.de/Record/109446788X CN 301.24 K1 Human Ecology K1 Man : Influence of environment K1 Sociology K1 Sozialökologie