APA-ийн эшлэл(7 дахь хэвлэлт)

Lewis, T. (2021). Empire of the air: The men who made radio (Thirtieth Anniversary Paperback Edition.). Cornell University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lewis, Tom. Empire of the Air: The Men Who Made Radio. Thirtieth Anniversary Paperback Edition. Ithaca [New York]: Cornell University Press, 2021.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lewis, Tom. Empire of the Air: The Men Who Made Radio. Thirtieth Anniversary Paperback Edition. Cornell University Press, 2021.