APA

United States, . (1999). Protocol for EPA approval of new methods for inorganic and organic analytes in wastewater and drinking water. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, Engineering and Analysis Division.

Chicago

United States, . 1999. Protocol for EPA approval of new methods for inorganic and organic analytes in wastewater and drinking water. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, Engineering and Analysis Division.

Harvard

United States, . (1999). Protocol for EPA approval of new methods for inorganic and organic analytes in wastewater and drinking water. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, Engineering and Analysis Division.

MLA

United States, . Protocol for EPA approval of new methods for inorganic and organic analytes in wastewater and drinking water. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, Engineering and Analysis Division. 1999.