APA (7th ed.) Citation

Nightingale, F., Calabria, M. D., & Macrae, J. (1994). Suggestions for thought. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Nightingale, Florence, Michael D. Calabria, and Janet Macrae. Suggestions for Thought. Philadelphia: University of Pennsylvania Press, 1994.

MLA (9th ed.) Citation

Nightingale, Florence, et al. Suggestions for Thought. University of Pennsylvania Press, 1994.