Cost effectiveness of the U.S. Geological Survey's stream-gaging program in Illinois /

Tables.

Ground-water conditions and well yields in fractured rocks, southwestern Nevada County, California /

Spine title: Ground-water conditions, well yields in fractured rocks, southwestern Nevada County, CA.

Estimate of self-supplied domestic water use in Oklahoma during 1980 /

Mode of access: Internet.

United States Army unit histories /

Mode of access: Internet.

Critical water problems facing the eleven Western states : Westwide study report : State comments.

Mode of access: Internet.