APA (7th ed.) Zitazioa

ebrary, Inc, & Gordley, J. (2001). The enforceability of promises in European contract law. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta James Gordley. The Enforceability of Promises in European Contract Law. Cambridge, UK ; New York: Cambridge University Press, 2001.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta James Gordley. The Enforceability of Promises in European Contract Law. Cambridge University Press, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.