Lewis, T. (2021). Empire of the air: The men who made radio (Thirtieth anniversary edition with a new preface.). Three Hills.
Chicago-Zitierstil (17. Ausg.)Lewis, Tom. Empire of the Air: The Men Who Made Radio. Thirtieth anniversary edition with a new preface. Ithaca ; London: Three Hills, 2021.
MLA-Zitierstil (9. Ausg.)Lewis, Tom. Empire of the Air: The Men Who Made Radio. Thirtieth anniversary edition with a new preface. Three Hills, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.