LARSEN, E. J. (1994). Modern Advanced Account E John Larsen. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)LARSEN, E John. Modern Advanced Account E John Larsen. McGraw-Hill, 1994.
Lua MLA (8ú heag.)LARSEN, E John. Modern Advanced Account E John Larsen. McGraw-Hill, 1994.
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