APA (7th ed.) Citation

Library of Congress. Catalog Division. (1919). American and English genealogies in Library of Congress. U.S. GPO.

Chicago Style (17th ed.) Citation

Library of Congress. Catalog Division. American and English Genealogies in Library of Congress. Washington: U.S. GPO, 1919.

MLA (9th ed.) Citation

Library of Congress. Catalog Division. American and English Genealogies in Library of Congress. U.S. GPO, 1919.

Warning: These citations may not always be 100% accurate.