APA引文

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

Παραπομπή Chicago Style

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

MLA引文

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

警告：這些引文格式不一定是100％准確.