APA (7th ed.) Citation

Bracke, M. S., Chinnaswamy, S., & Kline, E. (2008). Evolution of Reference: A New Service Model for Science and Engineering Libraries.

Chicago Style (17th ed.) Citation

Bracke, Marianne Stowell, Sainath Chinnaswamy, and Elizabeth Kline. Evolution of Reference: A New Service Model for Science and Engineering Libraries. 2008.

MLA (9th ed.) Citation

Bracke, Marianne Stowell, et al. Evolution of Reference: A New Service Model for Science and Engineering Libraries. 2008.