Cita APA (7a ed.)

Armstrong, D. M. (1973). Belief, truth and knowledge. Cambridge University Press.

Cita Chicago Style (17a ed.)

Armstrong, D. M. Belief, Truth and Knowledge. London: Cambridge University Press, 1973.

Cita MLA (9a ed.)

Armstrong, D. M. Belief, Truth and Knowledge. Cambridge University Press, 1973.