Flesch, R. (1951). The Art of Plain Talk. New York: Collier Books.
Trích dẫn kiểu ChicagoFlesch, Rudolf. The Art of Plain Talk. New York: Collier Books, 1951.
MLA引文Flesch, Rudolf. The Art of Plain Talk. New York: Collier Books, 1951.
警告：這些引文格式不一定是100％准確.