Cita APA

Keighley, M. R. B. (1990). Common problems in gastrointestinal surgery.

Chicago Style Citation

Keighley, M R B. Common Problems in Gastrointestinal Surgery. 1990.

Cita MLA

Keighley, M R B. Common Problems in Gastrointestinal Surgery. 1990.

Atenció: Aquestes cites poden no estar 100% correctes.