Showing 1 - 2 results of 2 for search 'Covar, Leticia C.', query time: 0.01s Refine Results
  1. 1

    Selected survey instruments by Makil, Perla Q.

    Published 1972
    Book

    Selected survey instruments
  2. 2

    Selected survey instruments by Makil, Perla Q., Covar, Leticia C.

    Published 1972
    Book

    Selected survey instruments

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