APA (7th ed.) Citation

McMullen, B. E., Masullo, M. J., & Postlethwaite, B. (1999). Digital Libraries: Potential and Risks.

Chicago Style (17th ed.) Citation

McMullen, Barbara E., Miriam J. Masullo, and Bonnie Postlethwaite. Digital Libraries: Potential and Risks. 1999.

MLA (9th ed.) Citation

McMullen, Barbara E., et al. Digital Libraries: Potential and Risks. 1999.