Hoinville, G., & Jowell, R. (1978). Survey research practice. Heinemann Educational Boks.
Chicago-čujuhus (17. p.)Hoinville, Gerald, juo Roger Jowell. Survey Research Practice. Londres: Heinemann Educational Boks, 1978.
MLA-čujuhus (9. p.)Hoinville, Gerald, juo Roger Jowell. Survey Research Practice. Heinemann Educational Boks, 1978.
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