APA

United States, . (1963). Copyright enactments: laws passed in the United States since 1783 relating to copyright. Washington: Copyright Office, Library of Congress.

Chicago

United States, . 1963. Copyright enactments: laws passed in the United States since 1783 relating to copyright. Washington: Copyright Office, Library of Congress.

Harvard

United States, . (1963). Copyright enactments: laws passed in the United States since 1783 relating to copyright. Washington: Copyright Office, Library of Congress.

MLA

United States, . Copyright enactments: laws passed in the United States since 1783 relating to copyright. Washington: Copyright Office, Library of Congress. 1963.