TY  - BOOK
AU  - Fletcher,L.
TI  - An introduction to the study of rocks and guide to the museum collection
T2  - Proceedings of the Ninth National Conference on Clays and Clay Minerals, Lafayette, Indiana, October 5-8, 1960
PY  - 1909///
CY  - London
PB  - W. Clowes and sons
KW  - Conferences - Meetings
ER  -