Cita APA (7a ed.)

Nixon, H. H., & O'Donnell, B. (1992). The essentials of paediatric surgery (4th ed.). Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Nixon, H. Homewood, y Barry O'Donnell. The Essentials of Paediatric Surgery. 4th ed. Oxford: Butterworth-Heinemann, 1992.

Cita MLA (9a ed.)

Nixon, H. Homewood, y Barry O'Donnell. The Essentials of Paediatric Surgery. 4th ed. Butterworth-Heinemann, 1992.