Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Murphy, Donald R', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    What farmers read and like; a record of experiments with readership on Wallaces' farmer and Wisconsin agriculturist, 1938-1961. gan Murphy, Donald R

    Cyhoeddwyd 1962
    Llyfr

    What farmers read and like; a record of experiments with readership on Wallaces' farmer and Wisconsin agriculturist, 1938-1961.

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