Helmkamp, J. G. (1987). Managerial accounting. John Wiley and Sons.
Chicago Style aipamenaHelmkamp, John G. Managerial Accounting. John Wiley and Sons, 1987.
MLA aipamenaHelmkamp, John G. Managerial Accounting. John Wiley and Sons, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.