GULATI RANJAY. (2003). KELLOGG ON TECHNOLOGY AND INNOVATION. JOHN WILEY AND SONS.
Lua i Stíl Chicago (17ú heag.)GULATI RANJAY. KELLOGG ON TECHNOLOGY AND INNOVATION. NEW JERSEY: JOHN WILEY AND SONS, 2003.
Lua MLA (9ú heag.)GULATI RANJAY. KELLOGG ON TECHNOLOGY AND INNOVATION. JOHN WILEY AND SONS, 2003.
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