共 50 条
- [41] EFFECTS OF TIMBER HARVESTING ON MARTEN IN MAINE JOURNAL OF WILDLIFE MANAGEMENT, 1979, 43 (04): : 850 - 860
- [45] ANALYSIS OF TIMBER HARVESTING OCCUPATIONS IN VIRGINIA AGRICULTURAL EDUCATION, 1977, 50 (04): : 92 - 93
- [46] OPERATION ANALYSIS BY STATISTICS IN TIMBER HARVESTING ALLGEMEINE FORST UND JAGDZEITUNG, 1984, 155 (01): : 14 - 20
- [47] CONCEPTS FOR HARVESTING TIMBER ON STEEP TERRAIN TRANSACTIONS OF THE ASAE, 1988, 31 (02): : 362 - 368