Dyfyniad APA

Perry, D. J. (2001). Spell - ing ref - er - ence: 29000+ words. Cincinnati, Ohio: Thomson Learning.

Dyfyniad Arddull Chicago

Perry, Devern J. Spell - Ing Ref - Er - Ence: 29000+ Words. Cincinnati, Ohio: Thomson Learning, 2001.

Dyfyniad MLA

Perry, Devern J. Spell - Ing Ref - Er - Ence: 29000+ Words. Cincinnati, Ohio: Thomson Learning, 2001.

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