APA ציטוט

Lewis, T. (1993). Empire of the air the men who made radio. New York: HarperPerennial.

Trích dẫn kiểu Chicago

Lewis, Tom. Empire of the Air the Men Who Made Radio. New York: HarperPerennial, 1993.

ציטוט MLA

Lewis, Tom. Empire of the Air the Men Who Made Radio. New York: HarperPerennial, 1993.