International codification system for medium and high rank coals
By: Economic Commission for Europe.
Contributors: United Nations. Economic Commission for Europe.
Publisher: United Nations
Published: 1988
Place of publication: New York
Language: eng
Number of pages: 26
Subjects: Coal -- Analysis.
Notes: "ECE/COAL/115."
"United Nations publication sales no.: E.88.II.E.15"--T.p. verso.