Christopher, D. (1977). Textbook of surgery, the biological basis of modern surgical practice. Saunders Company.
Lua i Stíl Chicago (17ú heag.)Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. Washington, D.C: Saunders Company, 1977.
Lua MLA (9ú heag.)Christopher, Davis. Textbook of Surgery, the Biological Basis of Modern Surgical Practice. Saunders Company, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.