Dangos 1 - 2 canlyniadau o 2 ar gyfer chwilio 'Stephan, Frederick Franklin 1903-', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Sampling opinions an analysis of survey procedure gan Stephan, Frederick Franklin 1903-

    Cyhoeddwyd 1963
    Llyfr

    Sampling opinions an analysis of survey procedure
  2. 2

    Sampling opinions an analysis of survey procedure gan Stephan, Frederick Franklin 1903-1971

    Cyhoeddwyd 1958
    Llyfr

    Sampling opinions an analysis of survey procedure

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