APA (7th ed.) Citation

Brush, G. S., Hill, J. M., & Unger, M. A. (1998). Pollution history of the Chesapeake Bay. [publisher not identified].

Chicago Style (17th ed.) Citation

Brush, Grace Somers, James M. Hill, and Michael A. Unger. Pollution History of the Chesapeake Bay. [Place of publication not identified]: [publisher not identified], 1998.

MLA (9th ed.) Citation

Brush, Grace Somers, et al. Pollution History of the Chesapeake Bay. [publisher not identified], 1998.