APA-viite

Sudhir Kumar Jena. (2016). Colon classification (6.). ESS ESS publication.

Chicago-tyylinen lähdeviittaus

Sudhir Kumar Jena. Colon Classification. 6. New Delhi: ESS ESS publication, 2016.

MLA-viite

Sudhir Kumar Jena. Colon Classification. 6. ESS ESS publication, 2016.