APA (7th ed.) Citation

Library of Congress. Periodicals Division. (1912). Check list of American 18th century newspapers in Library of Congress. U.S. GPO.

Chicago Style (17th ed.) Citation

Library of Congress. Periodicals Division. Check List of American 18th Century Newspapers in Library of Congress. Washington: U.S. GPO, 1912.

MLA (9th ed.) Citation

Library of Congress. Periodicals Division. Check List of American 18th Century Newspapers in Library of Congress. U.S. GPO, 1912.