APA (7th ed.) Citation

Sager, D., Dewey, P. R., Dowlin, K., & Hogan, P. M. (1999). John Henry versus the Computer: The Impact of the Internet on Reference Service.

Chicago Style (17th ed.) Citation

Sager, Don, Patrick R. Dewey, Kenneth Dowlin, and Patricia M. Hogan. John Henry Versus the Computer: The Impact of the Internet on Reference Service. 1999.

MLA (9th ed.) Citation

Sager, Don, et al. John Henry Versus the Computer: The Impact of the Internet on Reference Service. 1999.