000 00639nam a22001697a 4500
008 230329b |||||||| |||| 00| 0 eng d
020 _a0-860100-439-7
040 _aNational Science Library
_cNational Science Library
080 _a662.6/.7(082.2)
_bM3
245 _aimproved techniques for the extraction of primary forms of energy
_c/ A Seminar of the United Nations Economics Commission for Europe (Vienna 10-14 November 1980)
260 _aGraham:
_bCo-Operation with the United Nation,
300 _avii, 194p.
650 _aChemical technology
653 _aFossil fuels
653 _aHydrocarbons
942 _2udc
_cREF
999 _c16711
_d16711