Cita APA (7th ed.)

Simon Fraser University. Cognitive Science Programme & Levine, R. (1992). Formal grammar: Theory and implementation. Oxford University Press.

Cita Chicago (17th ed.)

Simon Fraser University. Cognitive Science Programme i Robert Levine. Formal Grammar: Theory and Implementation. New York: Oxford University Press, 1992.

Cita MLA (9th ed.)

Simon Fraser University. Cognitive Science Programme i Robert Levine. Formal Grammar: Theory and Implementation. Oxford University Press, 1992.