APA

United States, . (1938). Train lengths: hearings, 75th Congress, 3d session, on S. 69, to amend act to regulate commerce, as amended and supplemented, by limiting freight or other trains to 70 cars, Jan. 11-Mar. 18, 1938. [Washington, D.C.]: .

Chicago

United States, . 1938. Train lengths: hearings, 75th Congress, 3d session, on S. 69, to amend act to regulate commerce, as amended and supplemented, by limiting freight or other trains to 70 cars, Jan. 11-Mar. 18, 1938. [Washington, D.C.]: .

Harvard

United States, . (1938). Train lengths: hearings, 75th Congress, 3d session, on S. 69, to amend act to regulate commerce, as amended and supplemented, by limiting freight or other trains to 70 cars, Jan. 11-Mar. 18, 1938. [Washington, D.C.]: .

MLA

United States, . Train lengths: hearings, 75th Congress, 3d session, on S. 69, to amend act to regulate commerce, as amended and supplemented, by limiting freight or other trains to 70 cars, Jan. 11-Mar. 18, 1938. [Washington, D.C.]: . 1938.