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Taylor & Francis Ltd‎(2008)‎

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By Teal R. K.   Freeman K. W.   Girma K.   Arnall D. B.   Lawles J. W.   Martin K. L.   Mullen R. W.   Raun W. R.   in Journal of Sustainable Agriculture

ISSN:1044-0046|30|2|51-67

Haworth Press‎(2007)‎

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