Greenhalgh, L. (2001). Managing strategic relationships: The key to business success. Free Press.
Lua i Stíl Chicago (17ú heag.)Greenhalgh, Leonard. Managing Strategic Relationships: The Key to Business Success. New York: Free Press, 2001.
Lua MLA (8ú heag.)Greenhalgh, Leonard. Managing Strategic Relationships: The Key to Business Success. Free Press, 2001.
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