APA (7th ed.) Citation

MacCall, S. L., Edgar, W. B., & Herring, S. D. (1998). Patterns of Professional Practice in the Digital Collections of U.S. Public Libraries.

Chicago Style (17th ed.) Citation

MacCall, Steven L., William B. Edgar, and Susan D. Herring. Patterns of Professional Practice in the Digital Collections of U.S. Public Libraries. 1998.

MLA (9th ed.) Citation

MacCall, Steven L., et al. Patterns of Professional Practice in the Digital Collections of U.S. Public Libraries. 1998.