Patton, D. H., Johnson, E. M., Sari, Bloser, P., & Ames, L. (1959). Spelling for word mastery (Skilltext ed.). C.E. Merrill.
Chicago Style aipamenaPatton, David H., Eleanor M. Johnson, Sari, P.Z Bloser, and Lee Ames. Spelling for Word Mastery. Skilltext ed. Columbus, Ohio: C.E. Merrill, 1959.
MLA aipamenaPatton, David H., et al. Spelling for Word Mastery. Skilltext ed. C.E. Merrill, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.