Pernick, M. S. (1985). A calculus of suffering: Pain, professionalism, and anesthesia in 19. century America. Columbia Univ. Press.
Lua i Stíl Chicago (17ú heag.)Pernick, Martin S. A Calculus of Suffering: Pain, Professionalism, and Anesthesia in 19. Century America. New York [u.a.]: Columbia Univ. Press, 1985.
Lua MLA (8ú heag.)Pernick, Martin S. A Calculus of Suffering: Pain, Professionalism, and Anesthesia in 19. Century America. Columbia Univ. Press, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.