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  1. 1

    Economic consequences of the new rice technology.

    منشور في 1978
    كتاب

    Economic consequences of the new rice technology.
  2. 2

    The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements حسب Barker, Randolph

    منشور في 1972
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    كتاب

    The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements
  3. 3

    Employment and technological change in Philippine agriculture

    منشور في 1971
    كتاب

    Employment and technological change in Philippine agriculture

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