Mette Norgaard. (2005). The Ugly Duckling Goes To Work. AMACOM,American Management Association.
Lua i Stíl Chicago (17ú heag.)Mette Norgaard. The Ugly Duckling Goes To Work. USA: AMACOM,American Management Association, 2005.
Lua MLA (9ú heag.)Mette Norgaard. The Ugly Duckling Goes To Work. AMACOM,American Management Association, 2005.
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