Cita APA (7a ed.)

Piquinela, J. A. (2020). The gastric ulcer in the second decade of life.

Cita Chicago Style (17a ed.)

Piquinela, José A. The Gastric Ulcer in the Second Decade of Life. 2020.

Cita MLA (9a ed.)

Piquinela, José A. The Gastric Ulcer in the Second Decade of Life. 2020.