An introduction to the study of ore deposits
Hatch, F.H.
An introduction to the study of ore deposits - 1 - 115 - Proceedings of the Ninth National Conference on Clays and Clay Minerals, Lafayette, Indiana, October 5-8, 1960 .
--Conferences - Meetings
An introduction to the study of ore deposits - 1 - 115 - Proceedings of the Ninth National Conference on Clays and Clay Minerals, Lafayette, Indiana, October 5-8, 1960 .
--Conferences - Meetings