Irmscher, W. F. (1983). Holt English: Language and writing. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Irmscher, William F. Holt English: Language and Writing. New York: Holt, Rinehart and Winston, 1983.
Lua MLA (9ú heag.)Irmscher, William F. Holt English: Language and Writing. Holt, Rinehart and Winston, 1983.
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