APA

Mueller D. K., Helsel D. R., . (1996). Nutrients in the nation's waters - too much of a good thing?. Washington, DC: U.S. Government Print. Office.

Chicago

Mueller David K, Helsel Dennis R, . 1996. Nutrients in the nation's waters - too much of a good thing?. Washington, DC: U.S. Government Print. Office.

Harvard

Mueller D. K., Helsel D. R., . (1996). Nutrients in the nation's waters - too much of a good thing?. Washington, DC: U.S. Government Print. Office.

MLA

Mueller David K, Helsel Dennis R, . Nutrients in the nation's waters - too much of a good thing?. Washington, DC: U.S. Government Print. Office. 1996.