APA (7th ed.) Citation

Hudgens, J. (2017). Comprehensive Ruby programming: Go from beginner to confident programmer. Packt Publishing.

Chicago Style (17th ed.) Citation

Hudgens, Jordan. Comprehensive Ruby Programming: Go from Beginner to Confident Programmer. Birmingham, UK: Packt Publishing, 2017.

MLA (9th ed.) Citation

Hudgens, Jordan. Comprehensive Ruby Programming: Go from Beginner to Confident Programmer. Packt Publishing, 2017.

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