Cita APA

Ludwig, E., Paul, C., & Paul, E. (1949). Abraham Lincoln: The full life story of our martyred president. New York: Liveright.

Citación estilo Chicago

Ludwig, Emil, Cedar Paul, y Eden Paul. Abraham Lincoln: The Full Life Story of Our Martyred President. New York: Liveright, 1949.

Cita MLA

Ludwig, Emil, Cedar Paul, y Eden Paul. Abraham Lincoln: The Full Life Story of Our Martyred President. New York: Liveright, 1949.