APA (7th ed.) Citation

(1990). An introduction to ray tracing (3. pr.). Academic Pr.

Chicago Style (17th ed.) Citation

An Introduction to Ray Tracing. 3. pr. London u.a: Academic Pr, 1990.

MLA (9th ed.) Citation

An Introduction to Ray Tracing. 3. pr. Academic Pr, 1990.

Warning: These citations may not always be 100% accurate.