Dyfyniad APA

O'Donnell, M., Townes, W., Brown, C. F., & Pescosolido, J. (1970). The reading road to spelling. Harper & Row.

Dyfyniad Arddull Chicago

O'Donnell, Mabel, Willmina Townes, Carl F. Brown, and John Pescosolido. The Reading Road to Spelling. New York: Harper & Row, 1970.

Dyfyniad MLA

O'Donnell, Mabel, et al. The Reading Road to Spelling. Harper & Row, 1970.

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