Dyfyniad APA

Patton, D. H., Johnson, E. M., Sari, Bloser, P., & Ames, L. (1959). Spelling for word mastery (Skilltext ed.). C.E. Merrill.

Dyfyniad Arddull Chicago

Patton, David H., Eleanor M. Johnson, Sari, P.Z Bloser, and Lee Ames. Spelling for Word Mastery. Skilltext ed. Columbus, Ohio: C.E. Merrill, 1959.

Dyfyniad MLA

Patton, David H., et al. Spelling for Word Mastery. Skilltext ed. C.E. Merrill, 1959.

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