Dyfyniad APA

Neuman, W. L. (1991). Social research methods: Qualitative and quantitative approaches. Allyn and Bacon.

Dyfyniad Arddull Chicago

Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. Boston: Allyn and Bacon, 1991.

Dyfyniad MLA

Neuman, William Lawrence. Social Research Methods: Qualitative and Quantitative Approaches. Allyn and Bacon, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.