Holdaway Keith. (1998). Trainer as consultant. Crest.
Dyfyniad Arddull ChicagoHoldaway Keith. Trainer as Consultant. New Delhi: Crest, 1998.
Dyfyniad MLAHoldaway Keith. Trainer as Consultant. Crest, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.