Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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