APA

Gilliom R. J., Alley W. M. & Gurtz M. E. (1995). Design of the National Water-Quality Assessment Program. Washington, DC: U.S. Government Print. Office.

Chicago

Gilliom Robert J, Alley William M and Gurtz Martin E. 1995. Design of the National Water-Quality Assessment Program. Washington, DC: U.S. Government Print. Office.

Harvard

Gilliom R. J., Alley W. M. and Gurtz M. E. (1995). Design of the National Water-Quality Assessment Program. Washington, DC: U.S. Government Print. Office.

MLA

Gilliom Robert J, Alley William M and Gurtz Martin E. Design of the National Water-Quality Assessment Program. Washington, DC: U.S. Government Print. Office. 1995.