Showing 1 - 3 results of 3 for search 'Ruthenberg, Hans', query time: 0.01s Refine Results
  1. 1

    Innovation policy for small farmers in the tropics the economics of technical innovations for agricultural development by Ruthenberg, Hans

    Published 1985
    Book

    Innovation policy for small farmers in the tropics the economics of technical innovations for agricultural development
  2. 2

    Farming systems in the tropics by Ruthenberg, Hans

    Published 1976
    Book

    Farming systems in the tropics
  3. 3

    Agricultural development in Tanganyika by Ruthenberg, Hans

    Published 1964
    Book

    Agricultural development in Tanganyika

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