Dyfyniad APA
Bryman, A., & Foster, L. (2004). Social Research Methods (2nd ed.). Oxford University.
Dyfyniad Arddull Chicago
Bryman, Alan, and Liam Foster. Social Research Methods. 2nd ed. New York: Oxford University, 2004.
Dyfyniad MLA
Bryman, Alan, and Liam Foster. Social Research Methods. 2nd ed. Oxford University, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.