Cita APA (7a ed.)

Ayer, A. J. (1972). Probability and evidence. MacMillan.

Cita Chicago Style (17a ed.)

Ayer, A. J. Probability and Evidence. London [etc.]: MacMillan, 1972.

Cita MLA (9a ed.)

Ayer, A. J. Probability and Evidence. MacMillan, 1972.