Παραπομπή σε μορφή APA (7η εκδ.)

Caro, D., & Lehmann, R. (2009). Achievement inequalities in Hamburg schools: How do they change as students get older?

Παραπομπή σε μορφή Chicago (17η εκδ.)

Caro, D., και R. Lehmann. Achievement Inequalities in Hamburg Schools: How Do They Change as Students Get Older? 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Caro, D., και R. Lehmann. Achievement Inequalities in Hamburg Schools: How Do They Change as Students Get Older? 2009.