Shank, G. D. (2002). Qualitative research: A personal skills approach. Merrill/Prentice Hall.
Chicago-viite (17. p.)Shank, Gary D. Qualitative Research: A Personal Skills Approach. Upper Saddle River, New Jersey: Merrill/Prentice Hall, 2002.
MLA-viite (9. p.)Shank, Gary D. Qualitative Research: A Personal Skills Approach. Merrill/Prentice Hall, 2002.
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