APA (7th ed.) Citation

Bell, P., & Beer, B. (2015). Introducing GitHub: A non-technical guide. O'Reilly Media.

Chicago Style (17th ed.) Citation

Bell, Peter, and Brent Beer. Introducing GitHub: A Non-technical Guide. Sebastopol, CA: O'Reilly Media, 2015.

MLA (9th ed.) Citation

Bell, Peter, and Brent Beer. Introducing GitHub: A Non-technical Guide. O'Reilly Media, 2015.

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