Whaley. (1997). Problem and Materials In Commercial law (5th ed.). Aspen law & Business.
Chicago Style aipamenaWhaley. Problem and Materials In Commercial Law. 5th ed. USA: Aspen law & Business, 1997.
MLA aipamenaWhaley. Problem and Materials In Commercial Law. 5th ed. Aspen law & Business, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.