Lefton, R. (2004). Leadership through people skills. TMH.
Dyfyniad Arddull ChicagoLefton, Robert. Leadership Through People Skills. New Delhi: TMH, 2004.
Dyfyniad MLALefton, Robert. Leadership Through People Skills. TMH, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.