APA (7th ed.) Citation

Marsaglia, G., & Tsang, W. W. A simple method for generating gamma variables. ACM transactions on mathematical software..

Chicago Style (17th ed.) Citation

Marsaglia, George, and Wai Wan Tsang. "A Simple Method for Generating Gamma Variables." ACM Transactions on Mathematical Software. .

MLA (9th ed.) Citation

Marsaglia, George, and Wai Wan Tsang. "A Simple Method for Generating Gamma Variables." ACM Transactions on Mathematical Software., .