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Google圖書搜尋
Regional Adjustments in Grain Production
Alvin Charles Egbert
Earl Orel Heady
其他書名
A Linear Programming Analysis
出版
U.S. Department of Agriculture
, 1961
URL
http://books.google.com.hk/books?id=Vb4XAAAAYAAJ&hl=&source=gbs_api
EBook
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