Biogeochemistry of a forested ecosystem / Gene E.Likens. Likens, Gene E. 574.5 LIB 2013 Text pages cm http://www.loc.gov/catdir/enhancements/fy1317/2013942392-b.html http://www.loc.gov/catdir/enhancements/fy1317/2013942392-d.html http://www.loc.gov/catdir/enhancements/fy1317/2013942392-t.html eng