Cita APA (7a ed.)

Chai, J., & Chai, J. (2011). Peptic ulcer disease. IntechOpen.

Cita Chicago Style (17a ed.)

Chai, Jianyuan, y Jianyuan Chai. Peptic Ulcer Disease. Rijeka, Croatia: IntechOpen, 2011.

Cita MLA (9a ed.)

Chai, Jianyuan, y Jianyuan Chai. Peptic Ulcer Disease. IntechOpen, 2011.