APA (7th ed.) Citation

Glassner, A. S. (1989). An introduction to ray tracing. Academic.

Chicago Style (17th ed.) Citation

Glassner, Andrew S. An Introduction to Ray Tracing. London ; San Diego: Academic, 1989.

MLA (9th ed.) Citation

Glassner, Andrew S. An Introduction to Ray Tracing. Academic, 1989.