Dyfyniad APA

Kelley, K. A., Kaur, T., & Tsikitis, V. L. (2017). Perianal Crohn’s disease: Challenges and solutions. Clin Exp Gastroenterol.

Dyfyniad Arddull Chicago

Kelley, Katherine A., Taranjeet Kaur, and Vassiliki L. Tsikitis. "Perianal Crohn’s Disease: Challenges and Solutions." Clin Exp Gastroenterol 2017.

Dyfyniad MLA

Kelley, Katherine A., Taranjeet Kaur, and Vassiliki L. Tsikitis. "Perianal Crohn’s Disease: Challenges and Solutions." Clin Exp Gastroenterol 2017.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.