FRANK, M. (1972). Modern english: A practical reference guide. Prentice-Hall.
芝加哥风格引文FRANK, Marcella. Modern English: A Practical Reference Guide. Englewood Cliffs: Prentice-Hall, 1972.
MLA引文FRANK, Marcella. Modern English: A Practical Reference Guide. Prentice-Hall, 1972.
警告：这些引文格式不一定是100％准确.