Dale, E. (1969). Management: Theory and practice. Mcgraw-Hill.
Dyfyniad Arddull ChicagoDale, Ernest. Management: Theory and Practice. New York: Mcgraw-Hill, 1969.
Dyfyniad MLADale, Ernest. Management: Theory and Practice. Mcgraw-Hill, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.