Leadership in the twentieth century

Eitemau Tebyg

• Leadership in the twentieth century
  gan: Urwick, L.F
  Cyhoeddwyd: (1958)
• Leadership in the twentieth century /
  gan: Urwick, Lyndall F.
  Cyhoeddwyd: (1957)
• Leadership of the twentyfirst century
  gan: Rost, Joseph C
• Leadership in the 21st Century
  gan: Ramani, V V
  Cyhoeddwyd: (2005)
• Leadership
  gan: Hughers, Richard L.
  Cyhoeddwyd: (2006)