Walker, J. (1998). Stage two operational cost accounting knowledge. Vivabooks.
Chicago Style aipamenaWalker, J. Stage Two Operational Cost Accounting Knowledge. New Delhi: Vivabooks, 1998.
MLA aipamenaWalker, J. Stage Two Operational Cost Accounting Knowledge. Vivabooks, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.