Sinnott-Armstrong, W. (1992). The Value of Bad Grades. In Falling in Love with Wisdom (pp. 54–56). New York: Oxford University Press.

Sinnott-Armstrong, W. “The Value of Bad Grades.” In Falling in Love with Wisdom, 54–56. New York: Oxford University Press, 1992.

Sinnott-Armstrong W. The Value of Bad Grades. In: Falling in Love with Wisdom. New York: Oxford University Press; 1992. p. 54–6.

Sinnott-Armstrong, W. “The Value of Bad Grades.” Falling in Love with Wisdom, Oxford University Press, 1992, pp. 54–56.

Sinnott-Armstrong W. The Value of Bad Grades. Falling in Love with Wisdom. New York: Oxford University Press; 1992. p. 54–56.