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Performance of Commercial Corn Hybrids in Illinois, 1979

Alvan Ray GilmoreCharles S. WaltersD. F. WilkenElbert R. JaycoxJ. M. CourterJ. S. VandemarkMarjorie MeadWilliam R. Nelson

出版	University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service, 1980
URL	http://books.google.com.hk/books?id=rnjZAQAACAAJ&hl=&source=gbs_api