Dyfyniad APA

Rogers, P. C., Deer, G. H., & Gordon, D. R. (1947). Learn to spell. Rand McNally.

Dyfyniad Arddull Chicago

Rogers, Patterson C., George Harvison Deer, and Dorothy Rosemary Gordon. Learn to Spell. Chicago: Rand McNally, 1947.

Dyfyniad MLA

Rogers, Patterson C., et al. Learn to Spell. Rand McNally, 1947.

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