APA (7th ed.) Citation

Carlson, L., & Richardson, L. (2015). Ruby Cookbook, 2nd Edition (2nd edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Carlson, Lucas, and Leonard Richardson. Ruby Cookbook, 2nd Edition. 2nd edition. O'Reilly Media, Inc., 2015.

MLA (9th ed.) Citation

Carlson, Lucas, and Leonard Richardson. Ruby Cookbook, 2nd Edition. 2nd edition. O'Reilly Media, Inc., 2015.

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