Shaw, Z. (2014). Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition (1st edition.). Addison-Wesley Professional.
Chicago Style (17th ed.) CitationShaw, Zed. Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition. 1st edition. Addison-Wesley Professional, 2014.
MLA (9th ed.) CitationShaw, Zed. Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition. 1st edition. Addison-Wesley Professional, 2014.
Warning: These citations may not always be 100% accurate.