Cita APA (7a ed.)

Williams, M. (1977). Groundless belief: An essay on the possibility of epistemology. Blackwell.

Cita Chicago Style (17a ed.)

Williams, Michael. Groundless Belief: An Essay on the Possibility of Epistemology. Oxford: Blackwell, 1977.

Cita MLA (9a ed.)

Williams, Michael. Groundless Belief: An Essay on the Possibility of Epistemology. Blackwell, 1977.