Henderson, E. H., Coulter, B., Templeton, S., & Thomas, J. A. M. (1985). Houghton Mifflin spelling. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Henderson, Edmund H., Barbara Coulter, Shane Templeton, agus Joyce A. M. Thomas. Houghton Mifflin Spelling. Boston: Houghton Mifflin, 1985.
Lua MLA (8ú heag.)Henderson, Edmund H., et al. Houghton Mifflin Spelling. Houghton Mifflin, 1985.
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