Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Hum, Derek', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    Experimental social programs and analytic methods an evaluation of the U.S. income maintenance projects gan Basilevsky, Alexander

    Cyhoeddwyd 1984
    Llyfr

    Experimental social programs and analytic methods an evaluation of the U.S. income maintenance projects

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