共 50 条
- [2] WILL TIMBER RESOURCES OF SOUTHERN UNITED-STATES MEET DEMANDS [J]. TAPPI, 1977, 60 (06): : 51 - 53
- [3] Bioarchaeology of the North Central United States [J]. AMERICAN ANTIQUITY, 1998, 63 (04) : 715 - 715
- [4] RESOURCES - WEST NORTH CENTRAL STATES - INTRODUCTION [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY, 1954, 46 (11): : 2303 - 2303
- [5] ENERGY PLANTATIONS IN NORTH CENTRAL UNITED-STATES - STATUS OF RESEARCH-AND-DEVELOPMENT PLANTATIONS [J]. INTERNATIONAL SYMPOSIUM - ENERGY OPTIONS FOR THE YEAR 2000 : CONTEMPORARY CONCEPTS IN TECHNOLOGY AND POLICY, VOLS 1-4: ENERGY SYSTEM ; TECHNOLOGY FUTURES : ENERGY BUILDINGS ; INTERNATIONAL COOPERATION, 1988, : A255 - A260
- [6] ENERGY PLANTATIONS IN NORTH CENTRAL UNITED-STATES - STATUS OF RESEARCH-AND-DEVELOPMENT PLANTATIONS [J]. ENERGY SOURCES, 1991, 13 (01): : 105 - 110
- [7] Farmers' incentives to conserve soil resources: A dynamic model applied to the north-central United States [J]. LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY: BIOPHYSICAL PROCESSES AND ECONOMIC CHOICES AT LOCAL, REGIONAL, AND GLOBAL LEVELS, 2003, : 305 - 318
- [10] SOILS OF THE NORTH CENTRAL REGION OF THE UNITED-STATES [J]. PROFESSIONAL GEOGRAPHER, 1961, 13 (06): : 78 - 78