Duda, R. O., Hart, P. E., & Stork, D. G. (2011). Pattern classification (2nd ed.). Wiley India.

Duda, Richard O., Peter E. Hart, and David G. Stork. Pattern Classification. 2nd ed. New Delhi: Wiley India, 2011.

Duda, Richard O., et al. Pattern Classification. 2nd ed. Wiley India, 2011.