APA (7th ed.) Citation

Griffiths, T. V. (1968). Unsolvability of the equivalence problem for α-free nondeterministic generalized machines. Journal of the ACM, 15, 409.

Chicago Style (17th ed.) Citation

Griffiths, T. V. "Unsolvability of the Equivalence Problem for α-free Nondeterministic Generalized Machines." Journal of the ACM 15 (1968): 409.

MLA (9th ed.) Citation

Griffiths, T. V. "Unsolvability of the Equivalence Problem for α-free Nondeterministic Generalized Machines." Journal of the ACM, vol. 15, 1968, p. 409.

Warning: These citations may not always be 100% accurate.