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Google圖書搜尋
Field Appraisal of Resource Management Systems Farms
Paul Raymond Hepler
Maine Agricultural Experiment Station
其他書名
Crop Yield and Quality Relationships with Soil Erosion, 1980
出版
University of Maine at Orono, Maine Agricultural Experiment Station
, 1983
URL
http://books.google.com.hk/books?id=CuTCTTalx24C&hl=&source=gbs_api