Dugdale, B. E. (1920). Arthur James balfour. New York: G. P. Putnam's Sons.
Trích dẫn kiểu ChicagoDugdale, Blanche E. Arthur James Balfour. New York: G. P. Putnam's Sons, 1920.
MLA引文Dugdale, Blanche E. Arthur James Balfour. New York: G. P. Putnam's Sons, 1920.
警告：这些引文格式不一定是100％准确.