MLA

Pharr, Matt, and Greg Humphreys. Physically Based Rendering : From Theory to Implementation. 2nd ed. Amsterdam: Elsevier Science, 2010.

APA

Pharr, M., & Humphreys, G. (2010). Physically based rendering : from theory to implementation. 2nd ed. Amsterdam: Elsevier Science.

Chicago

Pharr, Matt, and Greg Humphreys. Physically Based Rendering: From Theory to Implementation. 2nd ed. Amsterdam: Elsevier Science, 2010.