APA引文
Lewis, C. S. (1960). The screwtape letters. MacMillam company.
Chicago Style (17th ed.) Citation
Lewis, C. S. The Screwtape Letters. New York: MacMillam company, 1960.
MLA引文
Lewis, C. S. The Screwtape Letters. MacMillam company, 1960.
警告:這些引文格式不一定是100%准確.