TY  - BOOK
AU  - Burwell,E.L.
AU  - Sterner,T.E.
AU  - Sterner,T.E.
ED  - United States of America. Department of the Interior
TI  - In situ retorting of oil shale
T2  - Bureau of Mines Report of Investigations
U1  - Archivo B952 0001772 
PY  - 1973///
CY  - United States of America
PB  - Bureau of Mines
KW  - Esquistos bituminosos
ER  -