NELSON, R. F. (1981). The almanac of American letters. William Kaufmann.
Lua i Stíl Chicago (17ú heag.)NELSON, Randy F. The Almanac of American Letters. California: William Kaufmann, 1981.
Lua MLA (9ú heag.)NELSON, Randy F. The Almanac of American Letters. William Kaufmann, 1981.
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