Neuman, W. L. (2006). Social research methods: Qualitative and quantitative approaches (6th ed.). Pearson/AandB.
Chicago-referens (17:e uppl.)Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. 6th ed. Boston: Pearson/AandB, 2006.
MLA-referens (8:e uppl.)Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. 6th ed. Pearson/AandB, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.