Logic Colloquium Oxford, England, Association for Symbolic Logic, North Atlantic Treaty Organization, International Union of the History and Philosophy of Science, Symposium on Recursive Functions, Crossley, J. N., & Dummett, M. A. E. (1965). Formal systems and recursive functions: Proceedings. North-Holland Pub. Co..
Chicago-viite (17. p.)Logic Colloquium Oxford, England, Association for Symbolic Logic, North Atlantic Treaty Organization, International Union of the History and Philosophy of Science, Symposium on Recursive Functions, John N. Crossley, ja Michael A. E. Dummett. Formal Systems and Recursive Functions: Proceedings. Amsterdam: North-Holland Pub. Co., 1965.
MLA-viite (8. p.)Logic Colloquium Oxford, England, et al. Formal Systems and Recursive Functions: Proceedings. North-Holland Pub. Co., 1965.