Cita APA (7a ed.)

Anscombe, G. E. M., & Geach, P. T. (1961). Three philosophers. Basil Blackwell.

Cita Chicago Style (17a ed.)

Anscombe, G. E. M., y P. T. Geach. Three Philosophers. Oxford: Basil Blackwell, 1961.

Cita MLA (9a ed.)

Anscombe, G. E. M., y P. T. Geach. Three Philosophers. Basil Blackwell, 1961.