Lua APA (7ú heag.)
Lichtman, M. (2013). Qualitative research in education: A user's guide (3rd ed.). Sage.
Lua i Stíl Chicago (17ú heag.)
Lichtman, Marilyn. Qualitative Research in Education: A User's Guide. 3rd ed. Los Angeles: Sage, 2013.
Lua MLA (9ú heag.)
Lichtman, Marilyn. Qualitative Research in Education: A User's Guide. 3rd ed. Sage, 2013.
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