FORNEY, J. S. (1992). Dos Beyond 640 K James S. Forney. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)FORNEY, James S. Dos Beyond 640 K James S. Forney. McGraw-Hill, 1992.
Lua MLA (8ú heag.)FORNEY, James S. Dos Beyond 640 K James S. Forney. McGraw-Hill, 1992.
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