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Forty-ninth Annual Report of the Ohio Agricultural Experiment Station for the Year Ended June 30, 1930
C. W. EllenwoodClaud Revere NeiswanderFrank Aldis WeltonOhio Agricultural Experiment Station
其他書名
1930-1931
出版Ohio Agricultural Experiment Station, 1931
URLhttp://books.google.com.hk/books?id=3elJAQAAMAAJ&hl=&source=gbs_api