APA

United States, .VHF radio communications coverage in international airspace under U.S. jurisdiction (except pacific islands). [Washington, D.C: .

Chicago

United States, .VHF radio communications coverage in international airspace under U.S. jurisdiction (except pacific islands). [Washington, D.C: .

Harvard

United States, .VHF radio communications coverage in international airspace under U.S. jurisdiction (except pacific islands). [Washington, D.C: .

MLA

United States, .[Washington, D.C: . .