Richardson, D. (1970). Guide to the negotiable instruments and the bills of exchange acts (4th ed.). Butterworths.
Chicago-tyylinen lähdeviittausRichardson, Dudley. Guide to the Negotiable Instruments and the Bills of Exchange Acts. 4th ed. London: Butterworths, 1970.
MLA-viiteRichardson, Dudley. Guide to the Negotiable Instruments and the Bills of Exchange Acts. 4th ed. Butterworths, 1970.
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