Cita APA (7th ed.)
Anonymous. (Fall 1999). Letters to the editor. National Forum.
Cita Chicago (17th ed.)
Anonymous. "Letters to the Editor." National Forum Fall 1999.
Cita MLA (9th ed.)
Anonymous. "Letters to the Editor." National Forum, Fall 1999.
Atenció: Aquestes cites poden no estar 100% correctes.