Dyfyniad APA

Beckmann, S. (2008). Mathematics for elementary teachers (2nd ed.). Pearson/Addison Wesley.

Dyfyniad Arddull Chicago

Beckmann, Sybilla. Mathematics for Elementary Teachers. 2nd ed. Boston: Pearson/Addison Wesley, 2008.

Dyfyniad MLA

Beckmann, Sybilla. Mathematics for Elementary Teachers. 2nd ed. Pearson/Addison Wesley, 2008.

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