TY - BOOK AU - Wilson,Kathleen Karah AU - Morren,George E.B. TI - Systems approaches for improvement in agriculture and resource management SN - 0024284114 AV - S540.M34 W69 PY - 1990/// CY - New York, London PB - Macmillan Pub. Co., Collier Macmillan KW - Agriculture KW - Research KW - Management KW - Study and teaching KW - System analysis KW - Natural resources N1 - Includes bibliographical references ER -