Hearn, D., & Baker, M. P. (1994). Computer graphics (2nd ed.). Prentice-Hall ; Prentice Hall of India Private Ltd..

Hearn, Donald, and M. Pauline Baker. Computer Graphics. 2nd ed. Englewood Cliffs, N.J. : New Delhi: Prentice-Hall ; Prentice Hall of India Private Ltd., 1994.

Hearn, Donald, and M. Pauline Baker. Computer Graphics. 2nd ed. Prentice-Hall ; Prentice Hall of India Private Ltd., 1994.