Παραπομπή APA

Chowdhury G G & others. (2008). Colon classification (6.). ESS ESS publication.

Παραπομπή Chicago Style

Chowdhury G G & others. Colon Classification. 6. New Delhi: ESS ESS publication, 2008.

Παραπομπή MLA

Chowdhury G G & others. Colon Classification. 6. ESS ESS publication, 2008.