Chapman, P. G. (1993). The economics of training. Harvester Wheatsheaf.
Chicago Style aipamenaChapman, Paul G. The Economics of Training. New York: Harvester Wheatsheaf, 1993.
MLA aipamenaChapman, Paul G. The Economics of Training. Harvester Wheatsheaf, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.