Maddux, R. B. (1994). Quality interviewing (3rd.ed.). Crisp.
Lua i Stíl Chicago (17ú heag.)Maddux, Robert B. Quality Interviewing. 3rd.ed. Menlo Park: Crisp, 1994.
Lua MLA (9ú heag.)Maddux, Robert B. Quality Interviewing. 3rd.ed. Crisp, 1994.
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