Williston, S. (1915). Negotiable instruments. American Institute of banking.
Lua i Stíl Chicago (17ú heag.)Williston, Samuel. Negotiable Instruments. New York: American Institute of banking, 1915.
Lua MLA (8ú heag.)Williston, Samuel. Negotiable Instruments. American Institute of banking, 1915.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.