TY  - BOOK
AU  - Fettweis, Gunter B.
TI  - World Coal Resources: : Methods of assessment and Result
T2  - Development in economics geology
SN  - 444997792
U1  - 553.2 
PY  - 1979///
CY  - New York: 
PB  - Elsevier Science, 
KW  - Coal Mining
KW  - Coal Resources
KW  - Coalgeology
KW  - Earth Science
ER  -