Cita APA (7a ed.)

Najarian, J. S., & Delaney, J. P. (1979). Gastrointestinal surgery. Symposia Specialists.

Cita Chicago Style (17a ed.)

Najarian, John S., y John P. Delaney. Gastrointestinal Surgery. Miami: Symposia Specialists, 1979.

Cita MLA (9a ed.)

Najarian, John S., y John P. Delaney. Gastrointestinal Surgery. Symposia Specialists, 1979.