Krout, J. A. (1961). United States since 1865. New York: Barnes & Noble.
Trích dẫn kiểu ChicagoKrout, John A. United States Since 1865. New York: Barnes & Noble, 1961.
MLA引文Krout, John A. United States Since 1865. New York: Barnes & Noble, 1961.
警告：这些引文格式不一定是100％准确.