Keefe, J. A. (2003). Improv yourself: Business spontaneity at the speed of thought. New York: John Wiley & Sons, Inc..
シカゴスタイル引用形Keefe, Joseph A. Improv Yourself: Business Spontaneity At the Speed of Thought. New York: John Wiley & Sons, Inc., 2003.
MLA引用形式Keefe, Joseph A. Improv Yourself: Business Spontaneity At the Speed of Thought. New York: John Wiley & Sons, Inc., 2003.
警告: この引用は必ずしも正確ではありません.