APA (7th ed.) Citation

Union League of Philadelphia Library, Tanner, J., & Whiteman, M. (1968). While Lincoln lay dying. Union League of Philadelphia.

Chicago Style (17th ed.) Citation

Union League of Philadelphia Library, James Tanner, and Maxwell Whiteman. While Lincoln Lay Dying. Philadelphia: Union League of Philadelphia, 1968.

MLA (9th ed.) Citation

Union League of Philadelphia Library, et al. While Lincoln Lay Dying. Union League of Philadelphia, 1968.