APA
United States, . (1917). Trading with the enemy: hearings on H.R. 4704, to define, regulate, and punish trading with the enemy, May 29-June 4, 1917. [Washington, D.C.]: .
Chicago
United States, . 1917. Trading with the enemy: hearings on H.R. 4704, to define, regulate, and punish trading with the enemy, May 29-June 4, 1917. [Washington, D.C.]: .
Harvard
United States, . (1917). Trading with the enemy: hearings on H.R. 4704, to define, regulate, and punish trading with the enemy, May 29-June 4, 1917. [Washington, D.C.]: .
MLA
United States, . Trading with the enemy: hearings on H.R. 4704, to define, regulate, and punish trading with the enemy, May 29-June 4, 1917. [Washington, D.C.]: . 1917.