TY  - BOOK
AU  - Sievers,E.G.
TI  - Natural-gas Gasoline in 1921
T2  - Mineral Resources of the United States, 1921-Part II
U1  - 553 
PY  - 1923///
CY  - Washington, D.C.
PB  - Government Printing Office
KW  - MINERIA
KW  - GAS NATURAL
KW  - GASOLINA
N1  - Impreso
ER  -