Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'De la Paz, D.R', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    A scale for household Socio-Economic Level (SEL) in the 1973 national demographic survey gan Castro, N.M. (Nilda M.)

    Cyhoeddwyd 1975
    Llyfr

    A scale for household Socio-Economic Level (SEL) in the 1973 national demographic survey

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