TY  - BOOK
AU  - Gallagher, J. J.
ED  - World power conference
TI  - Recent trends in the transportation of coal in the United States
T2  - Paper
VL  - 175
PY  - 1969///]
CY  - [М.
KW  - О184.893
KW  - rubbk
N2  - Библиогр.: с. 23
ER  -