Gaya APA

Delfin, G, B. et al (2021). World Journal of Gastroenterology Volume 27 (Volume 27). Pleasanton, USA: Baishideng Publishing Group Inc.

Gaya MLA

Delfin, Gerard, Buyco,. et al. "World Journal of Gastroenterology Volume 27". Volume 27 Pleasanton, USA: Baishideng Publishing Group Inc, 2021. Text.