(1968). Supplemental courses for case studies in surveys and censuses: 1. sampling lectures.
Chicago-viite (17. p.)Supplemental Courses for Case Studies in Surveys and Censuses: 1. Sampling Lectures. 1968.
MLA-viite (9. p.)Supplemental Courses for Case Studies in Surveys and Censuses: 1. Sampling Lectures. 1968.
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