Automata in General Algebras - Samuel Eilenberg; Jesse B. Wright (Inf. Control., 1967)

Classes of Semigroups and Classes of Sets - Samuel Eilenberg (STOC, 1973)

Automata, languages, and machines. A. - Samuel Eilenberg (Academic Press, 1974)

Automata, languages, and machines., B. - Samuel Eilenberg (Academic Press, 1976)

Review of "Algebraic and automata-theoretic properties of formal languages" by Seymour Ginsburg. North Holland, 1975. - Samuel Eilenberg (SIGACT News, 1976)