Cita APA (7a ed.)

Perrier, J. P., Fernández, M., & Sosa, M. C. (2000). Surgical treatment of achalasia and the option of laparoscopic surgery.

Cita Chicago Style (17a ed.)

Perrier, José Pedro, Miguel Fernández, y María Cristina Sosa. Surgical Treatment of Achalasia and the Option of Laparoscopic Surgery. 2000.

Cita MLA (9a ed.)

Perrier, José Pedro, et al. Surgical Treatment of Achalasia and the Option of Laparoscopic Surgery. 2000.