Cita APA (7a ed.)

Shapiro, A. K., & Shapiro, E. (1997). The powerful placebo: From ancient priest to modern physician. Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Shapiro, Arthur K., y Elaine Shapiro. The Powerful Placebo: From Ancient Priest to Modern Physician. Baltimore [etc.]: Johns Hopkins University Press, 1997.

Cita MLA (9a ed.)

Shapiro, Arthur K., y Elaine Shapiro. The Powerful Placebo: From Ancient Priest to Modern Physician. Johns Hopkins University Press, 1997.