Dymo, A. (2015). Ruby performance optimization: Why Ruby is slow, and how to fix it (1st edition.). The Pragmatic Bookself.
Chicago Style (17th ed.) CitationDymo, Alexander. Ruby Performance Optimization: Why Ruby Is Slow, and How to Fix It. 1st edition. Dallas, Texas ; Raleigh, North Carolina: The Pragmatic Bookself, 2015.
MLA (9th ed.) CitationDymo, Alexander. Ruby Performance Optimization: Why Ruby Is Slow, and How to Fix It. 1st edition. The Pragmatic Bookself, 2015.
Warning: These citations may not always be 100% accurate.