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Research Bulletin

Julius Gy FabosMilton D. SeekinsMoffat Patrick WitheringtonRichard Warren SmithWilliam S. AmesRobert D. PerlackRobert Lawrence Christensen

出版	Massachusetts Agricultural Experiment Station, University of Massachusetts at Amherst, College of Food and Natural Resources, 1977
URL	http://books.google.com.hk/books?id=3IFyGLe4mWYC&hl=&source=gbs_api