登入
選單
返回
Google圖書搜尋
Productivity and Income of Labor and Capital on Marshall Silt Loam Farms in Relation to Conservation Farming
Bruce Griffing
C. E. Wassom
Charles R. Weber
Earl Orel Heady
Gustof A. Peterson
Robert Rankin Kalton
Edna Douglas
John Francis Timmons
William Burl Back
M. P. Camery
Mary Stewart Lyle
R. C. Lane
A. L. McComb
John C. O'Byrne
出版
Agricultural Experiment Station, Iowa State College
, 1952
URL
http://books.google.com.hk/books?id=NNVKAQAAMAAJ&hl=&source=gbs_api