Williston, S. (1915). Negotiable instruments. American Institute of banking.
Chicago Style aipamenaWilliston, Samuel. Negotiable Instruments. New York: American Institute of banking, 1915.
MLA aipamenaWilliston, Samuel. Negotiable Instruments. American Institute of banking, 1915.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.