000 nam a22 7a 4500
999 _c3895
_d3895
003 Biblioteca INTEMIN
005 20180601094247.0
007 ta
008 180527b xxu||||| |||| 00| 0 eng d
041 _ainglés
080 _a504
100 _aAllsup, J. R.
_93547
245 _aOptimum automotive use of the combustion characteristics of gas from coal-low pollution considerations
_cAllsup, J. R.; Fleming, Ralph D.
260 _aWashington
_bBureau of mines
_c1975
300 _a15 p.
440 _aRI 8040
_97181
650 _aCONTAMINACION
_93338
650 _aCONTAMINATION
_92163
653 _aAUTOMOVILES
653 _aMOTORES
653 _aGAS DE ESCAPE
653 _aCOMBUSTIBLES DE MOTOR
653 _aAUTOMOBILES
653 _aMOTORS
653 _aEXHAUST GAS
653 _aMOTOR FUELS
700 _aFleming, Ralph D.
_98041
942 _2udc
_cCR