Charles Dickens. (2000). Hard Times (Norton Critical Editions) (3rd.). W. W. Norton & Company.
芝加哥风格引文Charles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
MLA引文Charles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
警告：这些引文格式不一定是100％准确.