Παραπομπή σε μορφή APA (7η εκδ.)

Cassinotti, A., Actis, G., Duca, P., Massari, A., Colombo, E., Gai, E., . . . Ardizzone, S. (2009). Maintenance treatment with azathioprine in ulcerative colitis: Outcome and predictive factors after drug withdrawal.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cassinotti, A., et al. Maintenance Treatment with Azathioprine in Ulcerative Colitis: Outcome and Predictive Factors After Drug Withdrawal. 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cassinotti, A., et al. Maintenance Treatment with Azathioprine in Ulcerative Colitis: Outcome and Predictive Factors After Drug Withdrawal. 2009.