Dyfyniad APA

Proga, R. (2005). Math for the anxious: Building basic skills. McGraw-Hill.

Dyfyniad Arddull Chicago

Proga, Rosanne. Math for the Anxious: Building Basic Skills. Boston: McGraw-Hill, 2005.

Dyfyniad MLA

Proga, Rosanne. Math for the Anxious: Building Basic Skills. McGraw-Hill, 2005.

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