TY  - BOOK
AU  - Kovalevskii A L
TI  - Biogeochemical exploration for mineral deposits
U1  - H1:155, L9 
PY  - 1979///
CY  - New Delhi    
PB  - Oxonian Press       
KW  -  Biogeochemical
KW  -  Mineralogy
KW  - Geology
ER  -