Cita APA (7a ed.)

Popov, E. V. (1986). Talking with computers in natural language. Springer.

Cita Chicago Style (17a ed.)

Popov, Eduard V. Talking with Computers in Natural Language. Berlin [etc.]: Springer, 1986.

Cita MLA (9a ed.)

Popov, Eduard V. Talking with Computers in Natural Language. Springer, 1986.