Cita APA (7a ed.)
Nightingale, F., Calabria, M. D., & Macrae, J. (1994). Suggestions for thought. University of Pennsylvania Press.
Cita Chicago Style (17a ed.)
Nightingale, Florence, Michael D. Calabria, y Janet Macrae. Suggestions for Thought. Philadelphia: University of Pennsylvania Press, 1994.
Cita MLA (9a ed.)
Nightingale, Florence, et al. Suggestions for Thought. University of Pennsylvania Press, 1994.
Precaución: Estas citas no son 100% exactas.