Ewell, P. T. (1988). Organization and Management of Field Activities in On-Farm Research: A Review of Experience in Nine Countries. International Service for National Agricultural Research.
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Cita Chicago Style (17a ed.)
Ewell, Peter T. Organization and Management of Field Activities in On-Farm Research: A Review of Experience in Nine Countries. International Service for National Agricultural Research, 1988.
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Cita MLA (9a ed.)
Ewell, Peter T. Organization and Management of Field Activities in On-Farm Research: A Review of Experience in Nine Countries. International Service for National Agricultural Research, 1988.
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