Youngman, M. B. (1978). Analysing social and educational research data. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Youngman, Michael B. Analysing Social and Educational Research Data. London: McGraw-Hill, 1978.
Lua MLA (9ú heag.)Youngman, Michael B. Analysing Social and Educational Research Data. McGraw-Hill, 1978.
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