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Farmer management of potato insect pests in Peru : Report of an interdisciplinar by
  • Ewell, P.T
Series: No. 6; International Potato Ce
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Lima ; 1990
Availability: Items available for loan: Prof. M S Swaminathan Library, ICAR: Indian Agricultural Research Institute (1).

Linkages between on-farm research and extension in nine countries by
  • Ewell, P.T
Series: No. 4; ISNAR, On-Farm Client-O
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Netherland ; 1980
Availability: Items available for loan: Prof. M S Swaminathan Library, ICAR: Indian Agricultural Research Institute (1).

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