Sperry, L. (2002). effective leadership: Strategies for maximizing executive productivity and health.
Chicago ZitierstilSperry, Len. Effective Leadership: Strategies for Maximizing Executive Productivity and Health. Brunner-routledge, 2002.
MLA ZitierstilSperry, Len. Effective Leadership: Strategies for Maximizing Executive Productivity and Health. 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.