APA (7th ed.) Citation

Witten, I. H., Bainbridge, D., & Nichols, D. M. How to build a digital library (2nd ed.).

Chicago Style (17th ed.) Citation

Witten, I. H., David Bainbridge, and David M. Nichols. How to Build a Digital Library. 2nd ed.

MLA (8th ed.) Citation

Witten, I. H., et al. How to Build a Digital Library. 2nd ed.