Cita APA (7a ed.)

(1995). Natural language understanding (2a ed.). The Benjamín, Cummings Publishing Company.

Cita Chicago Style (17a ed.)

Natural Language Understanding. 2a ed. EEUU: The Benjamín, Cummings Publishing Company, 1995.

Cita MLA (8a ed.)

Natural Language Understanding. 2a ed. The Benjamín, Cummings Publishing Company, 1995.