APA (7th ed.) Citation

O'Neill, E. H. (1935). A History of American Biography, 1800-1935. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

O'Neill, Edward H. A History of American Biography, 1800-1935. Philadelphia: University of Pennsylvania Press, 1935.

MLA (9th ed.) Citation

O'Neill, Edward H. A History of American Biography, 1800-1935. University of Pennsylvania Press, 1935.