Citazione Stile APA (7a Edizione)

Rogers, B. (2006). Cracking the hard class: Strategies for managing the harder than average class (Second edition.). Paul Chapman.

Citazione stile Chigago Style (17a edizione)

Rogers, Bill. Cracking the Hard Class: Strategies for Managing the Harder than Average Class. Second edition. London: Paul Chapman, 2006.

Citatione MLA (8a ed.)

Rogers, Bill. Cracking the Hard Class: Strategies for Managing the Harder than Average Class. Second edition. Paul Chapman, 2006.