Hagen, U. (1991). A challenge for the actor. Maxwell Macmillan International.
芝加哥风格引文Hagen, Uta. A Challenge for the Actor. New York: Maxwell Macmillan International, 1991.
MLA引文Hagen, Uta. A Challenge for the Actor. Maxwell Macmillan International, 1991.
警告：这些引文格式不一定是100％准确.