000 00547nam a22001577a 4500
008 230612b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _a668.7
_bL5.3
100 _aTernan, M
245 _aCatalysts for hydrocrackimg and refining heavy oils and tars part 3 the effect of presulphiding conditions on catalyst performance
260 _aCanada:
_bEnergy Research Program,
_61975
300 _a31p.
650 _aLanguage
653 _aIndustry
942 _2udc
_cREF
999 _c42228
_d42228