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- 77375712 contributor B3117656.
- 77375712 created "1976.".
- 77375712 date "1976".
- 77375712 date "1976.".
- 77375712 dateCopyrighted "1976.".
- 77375712 description "Bibliography: p. 24-25.".
- 77375712 extent "25 p. ;".
- 77375712 isPartOf "Rural economy research paper ; no. 1".
- 77375712 issued "1976".
- 77375712 issued "1976.".
- 77375712 language "eng".
- 77375712 publisher "Morogoro, Tanzania : Dept. of Rural Economy, Faculty of Agriculture, Forestry, and Veterinary Science, University of Dar es Salaam,".
- 77375712 spatial "Tanzania Iringa (District)".
- 77375712 subject "633/.15/0715".
- 77375712 subject "Agricultural extension work Tanzania Iringa (District)".
- 77375712 subject "Agricultural innovations Tanzania Iringa (District)".
- 77375712 subject "Corn Tanzania Iringa (District)".
- 77375712 subject "S544.5.T34 D48".
- 77375712 title "Has extension failed? : A case study of maize-growing practices in Iringa, Tanzania / by J. De Vries.".
- 77375712 type "text".