Dyfyniad APA

Wiersma, W., & Jurs, S. G. (1990). Educational measurement and testing (2nd ed.). Allyn and Bacon.

Dyfyniad Arddull Chicago

Wiersma, William, and Stephen G. Jurs. Educational Measurement and Testing. 2nd ed. Boston: Allyn and Bacon, 1990.

Dyfyniad MLA

Wiersma, William, and Stephen G. Jurs. Educational Measurement and Testing. 2nd ed. Allyn and Bacon, 1990.

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