Barrett, H. (1981). Speaking practically. Holt Rinehart & Winstor.
芝加哥风格引文Barrett, Harold. Speaking Practically. New York: Holt Rinehart & Winstor, 1981.
MLA引文Barrett, Harold. Speaking Practically. Holt Rinehart & Winstor, 1981.
警告：这些引文格式不一定是100％准确.