Richardson, D. (1970). Guide to the negotiable instruments and the bills of exchange acts (4th ed.). Butterworths.
Chicago Style aipamenaRichardson, Dudley. Guide to the Negotiable Instruments and the Bills of Exchange Acts. 4th ed. London: Butterworths, 1970.
MLA aipamenaRichardson, Dudley. Guide to the Negotiable Instruments and the Bills of Exchange Acts. 4th ed. Butterworths, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.