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Journal of Agrotechnical Economics
1000-6370
1997 Issue 6
nong ye chan ye hua de li lun jie ding yu zheng fu jiao se
niu ruo feng
..............
page:1-5
guang zhou shi nong ye ke ji tui guang guan li xin xi xi tong kai fa yan jiu
qu jing ying
..............
page:29-31,62
