Wilson, Kathleen, Morren, George E. B. Systems Approaches for Improvement in Agriculture and Resource Management,
Macmillan Publ. Co., 1990, XVIII, 361 с., 0-02-428411-4.
Wilson, Kathleen, Morren, George E. B. .
Systems Approaches for Improvement in Agriculture and Resource Management.
New York: Macmillan Publ. Co., 1990, XVIII, 361 с., 0-02-428411-4.
Wilson, Kathleen, Morren, George E. B. (1990)
Systems Approaches for Improvement in Agriculture and Resource Management,
New York: Macmillan Publ. Co., XVIII, 361 с., 0-02-428411-4
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