USA Radio Division. (1927). Annual report of the Director of Radio Division to the Secretary of Commerce: For the fiscal year .. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)USA Radio Division. Annual Report of the Director of Radio Division to the Secretary of Commerce: For the Fiscal Year .. Washington, DC: Gov. Print. Off, 1927.
MLA-Zitierstil (9. Ausg.)USA Radio Division. Annual Report of the Director of Radio Division to the Secretary of Commerce: For the Fiscal Year .. Gov. Print. Off, 1927.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.