United Air Service: Hearing before a Subcommittee of the Committee on Military Affairs, House of Representatives, Sixty-Sixth Congress, Second Session, Part 5.

MLA

United Air Service: Hearing before a Subcommittee of the Committee on Military Affairs, House of Representatives, Sixty-Sixth Congress, Second Session, Part 5. Washington: U.S. G.P.O., 1920.

APA

(1920). United Air Service: Hearing before a Subcommittee of the Committee on Military Affairs, House of Representatives, Sixty-Sixth Congress, Second Session, Part 5. Washington: U.S. G.P.O..

Chicago

United Air Service: Hearing before a Subcommittee of the Committee on Military Affairs, House of Representatives, Sixty-Sixth Congress, Second Session, Part 5. Washington: U.S. G.P.O., 1920.