Gutzman, A. D. (2002). Unforeseen circumstancesAlexis D. Gutzman. Amacom.
Lua i Stíl Chicago (17ú heag.)Gutzman, Alexis D. Unforeseen CircumstancesAlexis D. Gutzman. Amacom, 2002.
Lua MLA (8ú heag.)Gutzman, Alexis D. Unforeseen CircumstancesAlexis D. Gutzman. Amacom, 2002.
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