TY  - BOOK
AU  - Kelley Errol G
AU  -  Spottiswood David J
TI  - Introductionn to mineral processing
U1  - H1:2, M2 
PY  - 1982///
CY  - New York    
PB  -  John Wiley       
KW  -  Mineralogy
KW  - Geology
ER  -