Neuman, L. (2006). Social Reserch Metods. Univercity of wisconsin at whitewater.
Chicago-viite (17. p.)Neuman, Lawrence. Social Reserch Metods. Univercity of wisconsin at whitewater, 2006.
MLA-viite (9. p.)Neuman, Lawrence. Social Reserch Metods. Univercity of wisconsin at whitewater, 2006.
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