1
Published 1979
American Chemical Society
Subjects: ...United States / Department of Energy / Energy Technologies Division...

3
Published 1986
American Chemical Society
Subjects: ...Coal / Mineral inclusions / United States...

4
Published 1986
American Chemical Society
Subjects: ...Fly ash / Northeastern States...

5
Published 1994
American Chemical Society
Subjects: ...Renewable energy sources / United States...