Dyfyniad APA

Johnson, R. A., & Bhattacharyya, G. K. (2011). Statistics: Principles and methods (6th ed., International student version.). Wiley.

Dyfyniad Arddull Chicago

Johnson, Richard A., and Gouri K. Bhattacharyya. Statistics: Principles and Methods. 6th ed., International student version. New York: Wiley, 2011.

Dyfyniad MLA

Johnson, Richard A., and Gouri K. Bhattacharyya. Statistics: Principles and Methods. 6th ed., International student version. Wiley, 2011.

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