Dyfyniad APA

Phi Delta Kappa. Educational Foundation. (2005). Fastback. Phi Delta Kappa Educational Foundation.

Dyfyniad Arddull Chicago

Phi Delta Kappa. Educational Foundation. Fastback. [Bloomington, Ind.]: Phi Delta Kappa Educational Foundation, 2005.

Dyfyniad MLA

Phi Delta Kappa. Educational Foundation. Fastback. Phi Delta Kappa Educational Foundation, 2005.

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