Emory, C. W. (1980). Business Research Methods C. William Emory. Richard D. Irwin.
Lua i Stíl Chicago (17ú heag.)Emory, C. William. Business Research Methods C. William Emory. Richard D. Irwin, 1980.
Lua MLA (8ú heag.)Emory, C. William. Business Research Methods C. William Emory. Richard D. Irwin, 1980.
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