RT Book T1 The ecology of man: an ecosystem approach A1 Smith, Robert Leo 1925- LA English PP New York u.a. PB Harper & Row YR 1976 ED 2. ed. UL https://krimdok.uni-tuebingen.de/Record/342647083 CN GF8 SN 0060463384 K1 Human Ecology K1 Ökosystemforschung