Cita APA (7a ed.)

Ras, Z. W., & Zemankova, M. (1990). Intelligent systems: State of the art and future directions. Ellis Horwood.

Cita Chicago Style (17a ed.)

Ras, Zbigniew W., y Maria Zemankova. Intelligent Systems: State of the Art and Future Directions. New York [etc.]: Ellis Horwood, 1990.

Cita MLA (9a ed.)

Ras, Zbigniew W., y Maria Zemankova. Intelligent Systems: State of the Art and Future Directions. Ellis Horwood, 1990.