Horowitz, T., & Camp, J. L. (2006). The epistemology of a priori knowledge. Oxford University Press.

Horowitz, Tamara, and Joseph L. Camp. The Epistemology of a Priori Knowledge. Oxford ; New York: Oxford University Press, 2006.

Horowitz, Tamara, and Joseph L. Camp. The Epistemology of a Priori Knowledge. Oxford University Press, 2006.