Dyfyniad APA

(2006). Professional guide to assessment. Lippincott Williams & Wilkins.

Dyfyniad Arddull Chicago

Professional Guide to Assessment. Philadelphia: Lippincott Williams & Wilkins, 2006.

Dyfyniad MLA

Professional Guide to Assessment. Lippincott Williams & Wilkins, 2006.

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