TY  - BOOK
AU  - Butt, C. R. M.
AU  -  I. G. P. Wilding
TI  - Geological exploration, 1976
T2  - Developments in Economic Geology; 9
AV  - TN270.I63 
PY  - 1977///
CY  - Amsterdam
PB  - Elsevier
KW  - Geochemical prospecting
KW  - Congress
ER  -