Diehl, D. (2003). How did they manage: Leadership secrets of history. Penguin book.
Chicago Edition CitationDiehl, Daniel. How Did They Manage: Leadership Secrets of History. New Delhi: Penguin book, 2003.
Cita MLADiehl, Daniel. How Did They Manage: Leadership Secrets of History. Penguin book, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.