20160731 frey50

Coal exploration: proceedings of the first International Coal Exploration Symposium, London, England, May 18-21, 1976 / edited by William L.G. Muir. - San Francisco : Miller Freeman Publications, Inc. c1976. - 664 p. : ill. ; 24 cm. - A World coal book Vol. 1 .

0879300612

76041151


Prospecting--Congresses.
Coal--Congressses.

622.182 Coa 12