TY  - BOOK
AU  - Clark, J
AU  - Caldon, J H
TI  - Thin seam coal mining technology
T2  - Energy technology review 
SN  - 081550909X
PY  - 1982///
CY  - New Jersey: 
PB  - Noyes Data Corporation, 
KW  - Technology
KW  - Coal mines and mining
ER  -