RT Journal Article SR 00 ID 10.1017/S0376892900018531 A1 Levien, R. T1 Ecological Management from an International Perspective JF Environmental Conservation YR 1976 FD 1976-01 VO 3 IS 03 SP 183 OP 184 PB Cambridge Journals SN 0376-8929 LK https://pure.iiasa.ac.at/id/eprint/13730/