APA

United States, . (1933). Foreign trade zones: hearings before a subcommittee, 72d Congress, 2d session, on H.R. 4726 and 9206, February 15 and 16, 1933. [Washington, D.C.]: .

Chicago

United States, . 1933. Foreign trade zones: hearings before a subcommittee, 72d Congress, 2d session, on H.R. 4726 and 9206, February 15 and 16, 1933. [Washington, D.C.]: .

Harvard

United States, . (1933). Foreign trade zones: hearings before a subcommittee, 72d Congress, 2d session, on H.R. 4726 and 9206, February 15 and 16, 1933. [Washington, D.C.]: .

MLA

United States, . Foreign trade zones: hearings before a subcommittee, 72d Congress, 2d session, on H.R. 4726 and 9206, February 15 and 16, 1933. [Washington, D.C.]: . 1933.