Design of small dams за авторством United States department of the interior

Design of small dams за авторством United States department of the interior

Water measurement manual : a manual pertaining to measurement of water for irrigation projects

“...United States Department of the Interior Bureau of Reclamation...”

Accomplishment in soil and moisture conservation operations in grazing districts

“...United States Department of the Interior Bureau of Land Management...”

Analysis of public comment and final wilderness study areas November 1980

“...United States. Department of the Interior. Bureau of Land Management...”

Water measurement manual : a mannual pertainning primarily to measurement of water for irrigation projects.

“...United States.Department of the Interior.Bureau of Reclamation...”