Welch, K. J. (1986). Pediatric surgery.
Cita Chicago (17th ed.)Welch, Kenneth J. Pediatric Surgery. 1986.
Cita MLA (9th ed.)Welch, Kenneth J. Pediatric Surgery. 1986.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)