APA (7th ed.) Citation

Mallard, G. E. (1999). Recommendations for cycle II of National Water-Quality Assessment, NAWQA Program. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Mallard, Gail E. Recommendations for Cycle II of National Water-Quality Assessment, NAWQA Program. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Mallard, Gail E. Recommendations for Cycle II of National Water-Quality Assessment, NAWQA Program. U.S. Department of the Interior, U.S. Geological Survey, 1999.