Cita APA (7a ed.)

Levine, R. (1992). Formal grammar: Theory and implementation. Oxford University Press.

Cita Chicago Style (17a ed.)

Levine, Robert. Formal Grammar: Theory and Implementation. New York: Oxford University Press, 1992.

Cita MLA (8a ed.)

Levine, Robert. Formal Grammar: Theory and Implementation. Oxford University Press, 1992.