HEIFETZ R A. (2002). LEADERSHIP ON THE LINE: STAYING ALIVE THROUGH THE DANGERS OF LEADING. MCGRAW-HILL.
Dyfyniad Arddull ChicagoHEIFETZ R A. LEADERSHIP ON THE LINE: STAYING ALIVE THROUGH THE DANGERS OF LEADING. BOSTON: MCGRAW-HILL, 2002.
Dyfyniad MLAHEIFETZ R A. LEADERSHIP ON THE LINE: STAYING ALIVE THROUGH THE DANGERS OF LEADING. MCGRAW-HILL, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.