The Online Books Page

Books by Tyson M. Broad:

Books in the extended shelves:

• Broad, Tyson M.: Estimated water use and general hydrologic conditions for Oregon, 1985 and 1990 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), also by Charles A. Collins, Geological Survey (U.S.), Oregon. Health Division, and Oregon. Water Resources Department (page images at HathiTrust)
• Broad, Tyson M.: Ground water pumpage in the Willamette lowland regional aquifer system, Oregon and Washington, 1990 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996), also by Charles A. Collins, Geological Survey (U.S.), and National Regional Aquifer Systems Analysis Program (U.S.) (page images at HathiTrust)

Find more by Tyson M. Broad at your library, or elsewhere.