Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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