Collins, J. (2009). How the Mighty Fall: And Why Some Companies Never Give In. RH Business Books.
Lua i Stíl Chicago (17ú heag.)Collins, Jim. How the Mighty Fall: And Why Some Companies Never Give In. RH Business Books, 2009.
Lua MLA (9ú heag.)Collins, Jim. How the Mighty Fall: And Why Some Companies Never Give In. RH Business Books, 2009.
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