Karp, C. R. (1964). Languages with expressions of infinite length. North-Holland.
Citazione stile Chigago Style (17a edizione)Karp, Carol R. Languages with Expressions of Infinite Length. Amsterdam: North-Holland, 1964.
Citatione MLA (9a ed.)Karp, Carol R. Languages with Expressions of Infinite Length. North-Holland, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.