Evans, N. D. (2002). Business agilityNicholas D. Evans. s.n.
Lua i Stíl Chicago (17ú heag.)Evans, Nicholas D. Business AgilityNicholas D. Evans. s.n, 2002.
Lua MLA (8ú heag.)Evans, Nicholas D. Business AgilityNicholas D. Evans. s.n, 2002.
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