APA aipamena

(1975). Sistem Break-even British Institute Of Management. Djambatan.

Chicago Style aipamena

Sistem Break-even British Institute Of Management. Djambatan, 1975.

MLA aipamena

Sistem Break-even British Institute Of Management. Djambatan, 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.