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Delaware Agricultural Experiment Station Bulletin

J. Richard BaconPaul W. SchaeferRodolfo M. NaygaConrado M. GempesawKeizo IkebeYasutomo Higashiura

出版	University of Delaware, Agricultural Experiment Station, 1988
URL	http://books.google.com.hk/books?id=sJdQAQAAMAAJ&hl=&source=gbs_api