APA (7th ed.) Citation

Engeler, E. (1973). Introduction to the theory of computation. Academic Press.

Chicago Style (17th ed.) Citation

Engeler, Erwin. Introduction to the Theory of Computation. New York [etc.]: Academic Press, 1973.

MLA (9th ed.) Citation

Engeler, Erwin. Introduction to the Theory of Computation. Academic Press, 1973.