Cita APA (7a ed.)

Carter, D., & Polk, H. (1981). Trauma. butterworths.

Cita Chicago Style (17a ed.)

Carter, David, y Hiram Polk. Trauma. London: butterworths, 1981.

Cita MLA (9a ed.)

Carter, David, y Hiram Polk. Trauma. butterworths, 1981.