Cita APA (7a ed.)

Caudill, M., & Butler, C. (1990). Naturally intelligent systems. MIT.

Cita Chicago Style (17a ed.)

Caudill, Maureen, y Charles Butler. Naturally Intelligent Systems. Cambridge (Massachusetts) [etc.]: MIT, 1990.

Cita MLA (9a ed.)

Caudill, Maureen, y Charles Butler. Naturally Intelligent Systems. MIT, 1990.