TY  - BOOK
ED  - United Nations.
ED  - United Nations.
ED  - United Nations.
TI  - Quarterly bulletin of coal statistics for Europe: vol. 20, no. 4 
U1  - 338.272 
PY  - 1971///
CY  - New York
PB  - United Nations
KW  - Coal
KW  - Europe
KW  - Statistics
KW  - Periodicals
KW  - fast
N1  - Also issued online
ER  -