United States Federal Communications Commission. (1941). Radio requirements for safety purposes for ships navigating the great lakes and the inland waters of the United States: Letter from the chairman of the Federal Communications Commission transmitting, pursuant to law, a report of the Federal Communications Commission on the special study of the radio requirements for safety purposes for ships navigating the Great lakes and the inland waters of the United States. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)United States Federal Communications Commission. Radio Requirements for Safety Purposes for Ships Navigating the Great Lakes and the Inland Waters of the United States: Letter from the Chairman of the Federal Communications Commission Transmitting, Pursuant to Law, a Report of the Federal Communications Commission on the Special Study of the Radio Requirements for Safety Purposes for Ships Navigating the Great Lakes and the Inland Waters of the United States. Washington, DC: US Gov. Print. Off, 1941.
MLA-Zitierstil (9. Ausg.)United States Federal Communications Commission. Radio Requirements for Safety Purposes for Ships Navigating the Great Lakes and the Inland Waters of the United States: Letter from the Chairman of the Federal Communications Commission Transmitting, Pursuant to Law, a Report of the Federal Communications Commission on the Special Study of the Radio Requirements for Safety Purposes for Ships Navigating the Great Lakes and the Inland Waters of the United States. US Gov. Print. Off, 1941.