Bibliography

Here are some helpful recourses!

Manganese ...

http://nmsp.cals.cornell.edu/publications/factsheets/factsheet49.pdf 

Bacterial Communities Inside and Surrounding Soil Iron-Manganese Nodules ...

http://www.zjubiolab.zju.edu.cn/wumin/userfiles/lab-paper/000459-20120303145538.pdf

Manganese ...

http://lpi.oregonstate.edu/infocenter/minerals/manganese/

Manganese (Mn++) ...

http://www.spectrumanalytic.com/support/library/ff/Mn_Basics.htm

Soil and Applied Manganese ...

http://www.soils.wisc.edu/extension/pubs/A2526.pdf