Schmidt, Richard A.
Coal in America : an encyclopedoa of reserves, production and use Richard A. Schmidt - New York: McGraw-Hill, 1979. - 458p.
Includes index
eng
333.82 / SCC
Coal in America : an encyclopedoa of reserves, production and use Richard A. Schmidt - New York: McGraw-Hill, 1979. - 458p.
Includes index
eng
333.82 / SCC