The control of pollution caused by hydrographic modifications.

APA Citation

United States. Environmental Protection Agency. (1973). The control of pollution caused by hydrographic modifications. Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

United States. Environmental Protection Agency. The Control of Pollution Caused by Hydrographic Modifications. Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1973.

Warning: These citations may not always be complete (especially for serials).