APA (7th ed.) Citation

Horowitz, L. R., Flanagan, P. A., & Helman, D. L. (2005). The Viability of Live Online Reference: An Assessment.

Chicago Style (17th ed.) Citation

Horowitz, Lisa R., Patricia A. Flanagan, and Deborah L. Helman. The Viability of Live Online Reference: An Assessment. 2005.

MLA (9th ed.) Citation

Horowitz, Lisa R., et al. The Viability of Live Online Reference: An Assessment. 2005.