Cita APA (7a ed.)

Hennie, F. (1977). Introduction to computability. Addison-Wesley.

Cita Chicago Style (17a ed.)

Hennie, Fred. Introduction to Computability. Reading: Addison-Wesley, 1977.

Cita MLA (9a ed.)

Hennie, Fred. Introduction to Computability. Addison-Wesley, 1977.