Cita APA (7a ed.)

Bar, C. v., & Hartkamp, A. (2011). Towards a European Civil code (4th rev. and expanded ed.). Wolters Kluwer Law & Business [etc.].

Cita Chicago Style (17a ed.)

Bar, Christian von, y Arthur Hartkamp. Towards a European Civil Code. 4th rev. and expanded ed. Austin [etc.]: Wolters Kluwer Law & Business [etc.], 2011.

Cita MLA (9a ed.)

Bar, Christian von, y Arthur Hartkamp. Towards a European Civil Code. 4th rev. and expanded ed. Wolters Kluwer Law & Business [etc.], 2011.