Dyfyniad APA

Sapsford, R., & Jupp, V. (2006). Data collection and analysis (2nd ed.). Sage.

Dyfyniad Arddull Chicago

Sapsford, Roger, and Victor Jupp. Data Collection and Analysis. 2nd ed. London: Sage, 2006.

Dyfyniad MLA

Sapsford, Roger, and Victor Jupp. Data Collection and Analysis. 2nd ed. Sage, 2006.

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