APA (7th ed.) Citation

U.S. Customs Service. (1891). New regulations governing free importation of articles for exhibition at World's Columbian Exposition at Chicago: Under Act of Congress approved Apr. 25, 1890. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Customs Service. New Regulations Governing Free Importation of Articles for Exhibition at World's Columbian Exposition at Chicago: Under Act of Congress Approved Apr. 25, 1890. Washington: U.S. Government Printing Office, 1891.

MLA (9th ed.) Citation

U.S. Customs Service. New Regulations Governing Free Importation of Articles for Exhibition at World's Columbian Exposition at Chicago: Under Act of Congress Approved Apr. 25, 1890. U.S. Government Printing Office, 1891.