Manganese
Beatty, Richard.
Manganese - New York Benchmark Books 2005 - 32p.: col. photos
5 - 9
0-7614-1813-X Winter 2007 World Almanac
Manganese - New York Benchmark Books 2005 - 32p.: col. photos
5 - 9
0-7614-1813-X Winter 2007 World Almanac