Pearce, C. L. (2010). The Drucker Difference: What the world's greatest management thinker means to today's business leaders. New York: McGraw-Hill.
Παραπομπή Chicago StylePearce, Craig L. The Drucker Difference: What the World's Greatest Management Thinker Means to Today's Business Leaders. New York: McGraw-Hill, 2010.
Παραπομπή MLAPearce, Craig L. The Drucker Difference: What the World's Greatest Management Thinker Means to Today's Business Leaders. New York: McGraw-Hill, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.