Dyfyniad APA

National Educational Testing and Research Center annual report. Research & Evaluation Division.

Dyfyniad Arddull Chicago

National Educational Testing and Research Center Annual Report. Pasig, Metro Manila: Research & Evaluation Division.

Dyfyniad MLA

National Educational Testing and Research Center Annual Report. Research & Evaluation Division.

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