Neuman, W. L. (1997). Social research methods: Qualitative and quantitative approaches (3rd ed.). allyn and Bacon.
Chicago-Zitierstil (17. Ausg.)Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. 3rd ed. Boston: allyn and Bacon, 1997.
MLA-Zitierstil (8. Ausg.)Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. 3rd ed. allyn and Bacon, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.