Cita APA

(1999). A twentieth century American reader. Washington, D.C: United States Department of State.

Citación estilo Chicago

A Twentieth Century American Reader. Washington, D.C: United States Department of State, 1999.

Cita MLA

A Twentieth Century American Reader. Washington, D.C: United States Department of State, 1999.

Precaución: Estas citas no son 100% exactas.