TY  - BOOK
AU  - Barker,L.K.
AU  - Cottingham,P.L.
AU  - Cottingham,P.L.
ED  - United States of America. Department of the Interior
TI  - Refining improvement of shale-oil naphtha
T2  - Bureau of Mines Report of Investigations
U1  - Archivo B952 0001770 
PY  - 1973///
CY  - United States of America
PB  - Bureau of Mines
KW  - Esquistos bituminosos
ER  -