Cita APA (7a ed.)

Crossley, J. N., & Dummett, M. (1965). Formal systems and recursive functions. North-Holland.

Cita Chicago Style (17a ed.)

Crossley, John N., y Michael Dummett. Formal Systems and Recursive Functions. Amsterdam: North-Holland, 1965.

Cita MLA (8a ed.)

Crossley, John N., y Michael Dummett. Formal Systems and Recursive Functions. North-Holland, 1965.