Dyfyniad APA

McCormack, B., & Hill, L. (1997). Conducting a survey. London: International Thomson Press.

Dyfyniad Arddull Chicago

McCormack, Brenda., và Liz Hill. Conducting a Survey. London: International Thomson Press, 1997.

Dyfyniad MLA

McCormack, Brenda., và Liz Hill. Conducting a Survey. London: International Thomson Press, 1997.

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