APA (7th ed.) Citation

Feldt, R., Johnson, L., & Neumann, M. (2002). Ruby Developers Guide (1.). Elsevier Science & Technology Books. https://doi.org/10.1016/B978-1-928994-64-0.X5000-1

Chicago Style (17th ed.) Citation

Feldt, Robert, Lyle Johnson, and Michael Neumann. Ruby Developers Guide. 1. Chantilly: Elsevier Science & Technology Books, 2002. https://doi.org/10.1016/B978-1-928994-64-0.X5000-1.

MLA (9th ed.) Citation

Feldt, Robert, et al. Ruby Developers Guide. 1. Elsevier Science & Technology Books, 2002. https://doi.org/10.1016/B978-1-928994-64-0.X5000-1.