TY  - BOOK
AU  - Clark,George B.
ED  - Internationl symposium on mining research
TI  - Internationl symposium on mining research: proceedings of a symposium held at the University of Missouri, February 1961 
U1  -  622.072 
PY  - 1962///
CY  - Oxford
PB  - Pergamon Press
KW  - Coal mines and mining
KW  - Research
KW  - Mining
ER  -