Horn, E., & Peterson, T. (1945). Spelling you need. J.B. Lippincott Company.
Lua i Stíl Chicago (17ú heag.)Horn, Ernest, agus Thelma Peterson. Spelling You Need. Chicago, New York: J.B. Lippincott Company, 1945.
Lua MLA (8ú heag.)Horn, Ernest, agus Thelma Peterson. Spelling You Need. J.B. Lippincott Company, 1945.
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