Cita APA (7th ed.)
Mark Twain Circle. (2014). Mark Twain circular. Published in association with the Mark Twain Circle.
Cita Chicago (17th ed.)
Mark Twain Circle. Mark Twain Circular. Charleston, S.C.: Published in association with the Mark Twain Circle, 2014.
Cita MLA (9th ed.)
Mark Twain Circle. Mark Twain Circular. Published in association with the Mark Twain Circle, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.