共 50 条
- [22] THE ECONOMICS OF NATURAL-RESOURCES - LECOMBER,R AUSTRALIAN JOURNAL OF AGRICULTURAL ECONOMICS, 1980, 24 (03): : 311 - 312
- [23] NATURAL-RESOURCES - THE ECONOMICS OF CONSERVATION - SCOTT,A JOURNAL OF FARM ECONOMICS, 1956, 38 (01): : 204 - 205
- [27] THE ECONOMICS OF NATURAL-RESOURCES - LECOMBER,R MANCHESTER SCHOOL OF ECONOMIC AND SOCIAL STUDIES, 1980, 48 (01): : 100 - 101