Bibliography

D.O and ph|| About ph||How much D.O do f+ish need||Glossery||Results|| Bibliography

"Parts per million." Parts per million. March 3. 5 Feb 2008 <http://users.rcn.com/jkimball.ma.Ultranet/BiologyPages/P/Ppm.html>. "D.O criteria." D.O criteria. 6 Feb 2008 <http://www.chesapeakebay.net/wqcoxygen.htm>. "Why D.O is important." Why D.O is important. 6 Feb 2008 <http://www.state.ky.us/nrepc/water/wcpdo.htm>.