Carlson, L., & Richardson, L. (2006). Ruby cookbook. O'Reilly.
Chicago Style (17th ed.) CitationCarlson, Lucas, and Leonard Richardson. Ruby Cookbook. Sebastopol, CA: O'Reilly, 2006.
MLA (8th ed.) CitationCarlson, Lucas, and Leonard Richardson. Ruby Cookbook. O'Reilly, 2006.
Warning: These citations may not always be 100% accurate.