R B Alexander

2 books

Mar 1, 2013
Cover of Data from Selected U.S. Geological Survey National Stream Water-Quality Monitoring Networks (Wqn) on CD-ROM

Data from Selected U.S. Geological Survey National Stream Water-Quality Monitoring Networks (Wqn) on CD-ROM

Aug 29, 2011
Cover of A Statistical Summary of Data from the U.S. Geological Survey's National Water Quality Networks

A Statistical Summary of Data from the U.S. Geological Survey's National Water Quality Networks