APA

United States, . (1939). National Travel Board: hearing before subcommittee, 76th Congress, 1st session, on H.R. 1792 and H.R. 5412, [bills] to encourage travel in United States, Mar. 28, 1939. [Washington, D.C.]: .

Chicago

United States, . 1939. National Travel Board: hearing before subcommittee, 76th Congress, 1st session, on H.R. 1792 and H.R. 5412, [bills] to encourage travel in United States, Mar. 28, 1939. [Washington, D.C.]: .

Harvard

United States, . (1939). National Travel Board: hearing before subcommittee, 76th Congress, 1st session, on H.R. 1792 and H.R. 5412, [bills] to encourage travel in United States, Mar. 28, 1939. [Washington, D.C.]: .

MLA

United States, . National Travel Board: hearing before subcommittee, 76th Congress, 1st session, on H.R. 1792 and H.R. 5412, [bills] to encourage travel in United States, Mar. 28, 1939. [Washington, D.C.]: . 1939.