Kreitner, R. (1989). Management.: Robert Kreitner. 4th ed. Mass. : houghton.
Dyfyniad Arddull ChicagoKreitner, Robert. Management.: Robert Kreitner. 4th Ed. Boston: Mass. : houghton, 1989.
Dyfyniad MLAKreitner, Robert. Management.: Robert Kreitner. 4th Ed. Mass. : houghton, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.