Harter, Walter frey50
Coal; the rock that burns. Walter L. Harter - New York Nelson Books 1979 - 128 p.
Describes coal, wher it's found, how it's recovered, who mines it, and its many uses.
0-525-66609-2
Coal - Juvenile literature--Coal mines and mining
j553.2 Har 25
Coal; the rock that burns. Walter L. Harter - New York Nelson Books 1979 - 128 p.
Describes coal, wher it's found, how it's recovered, who mines it, and its many uses.
0-525-66609-2
Coal - Juvenile literature--Coal mines and mining
j553.2 Har 25