Tad Tuleja. (1985). Beyond the bottom line: How business leaders are turning principles into profits. New York: Penguin Book.
Παραπομπή Chicago StyleTad Tuleja. Beyond the Bottom Line: How Business Leaders Are Turning Principles Into Profits. New York: Penguin Book, 1985.
Παραπομπή MLATad Tuleja. Beyond the Bottom Line: How Business Leaders Are Turning Principles Into Profits. New York: Penguin Book, 1985.
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