Henderson, E. H., Coulter, B., Templeton, S., & Thomas, J. A. M. (1985). Houghton Mifflin spelling. Houghton Mifflin.
Chicago Style aipamenaHenderson, Edmund H., Barbara Coulter, Shane Templeton, and Joyce A. M. Thomas. Houghton Mifflin Spelling. Boston: Houghton Mifflin, 1985.
MLA aipamenaHenderson, Edmund H., et al. Houghton Mifflin Spelling. Houghton Mifflin, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.