Cita APA (7a ed.)

Ullmann, J. R. (1973). Pattern recognition techniques. Butterworths.

Cita Chicago Style (17a ed.)

Ullmann, Julian R. Pattern Recognition Techniques. London: Butterworths, 1973.

Cita MLA (9a ed.)

Ullmann, Julian R. Pattern Recognition Techniques. Butterworths, 1973.