Rogers, B. (2006). Cracking the hard class: Strategies for managing the harder than average class (Second edition.). Paul Chapman.
芝加哥风格引文Rogers, Bill. Cracking the Hard Class: Strategies for Managing the Harder than Average Class. Second edition. London: Paul Chapman, 2006.
MLA引文Rogers, Bill. Cracking the Hard Class: Strategies for Managing the Harder than Average Class. Second edition. Paul Chapman, 2006.
警告：这些引文格式不一定是100％准确.