Neuman, W. L. (2006). Social research methods: Quantitative and qualitative approaches. Pearson.
Chicago-čujuhus (17. p.)Neuman, W. Lawrence. Social Research Methods: Quantitative and Qualitative Approaches. New Delhi: Pearson, 2006.
MLA-čujuhus (9. p.)Neuman, W. Lawrence. Social Research Methods: Quantitative and Qualitative Approaches. Pearson, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.