Παραπομπή APA

Neuman, L. W. (2000). Social research methods: Qualitative and quantitative approaches (4th ed.). Allyn and Bacon.

Παραπομπή Chicago Style

Neuman, Lowrence W. Social Research Methods: Qualitative and Quantitative Approaches. 4th ed. London: Allyn and Bacon, 2000.

Παραπομπή MLA

Neuman, Lowrence W. Social Research Methods: Qualitative and Quantitative Approaches. 4th ed. Allyn and Bacon, 2000.