Cita APA (7th ed.)

Black, J. A. (1987). Paediatric emergencies (2nd ed.). Butterworths.

Cita Chicago (17th ed.)

Black, J. A. Paediatric Emergencies. 2nd ed. London: Butterworths, 1987.

Cita MLA (9th ed.)

Black, J. A. Paediatric Emergencies. 2nd ed. Butterworths, 1987.