APA (7th ed.) Citation

Allen, R. B., & Rasmussen, E. (1997). Digital Libraries '97: Proceedings of the 2nd ACM International Conference Philadelphia, PA July 23-26, 1997. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

Allen, Robert B., and Edie Rasmussen. Digital Libraries '97: Proceedings of the 2nd ACM International Conference Philadelphia, PA July 23-26, 1997. New York: Association for Computing Machinery, 1997.

MLA (8th ed.) Citation

Allen, Robert B., and Edie Rasmussen. Digital Libraries '97: Proceedings of the 2nd ACM International Conference Philadelphia, PA July 23-26, 1997. Association for Computing Machinery, 1997.