Annual report.
Operation of the Colorado River Basin ... projected operations.

APA Citation

United States. Bureau of Reclamation. Annual report. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Reclamation.

MLA Citation

United States. Bureau of Reclamation. Annual Report. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Reclamation,

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