Hahn, H. (1996). Harley Hahn's The Internet Complete Reference. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Hahn, Harley. Harley Hahn's The Internet Complete Reference. McGraw-Hill, 1996.
Lua MLA (8ú heag.)Hahn, Harley. Harley Hahn's The Internet Complete Reference. McGraw-Hill, 1996.
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