000 003100000a22001210004500
245 _aYearbook of science and the future 1979
110 _aEncyclopaedia Britannica,
260 _aLondon
_bEncyclopaedia Britannica
_c1979
300 _a447p. : ill.
080 _a5(058)
_bE6
041 _aEN
942 _cBK
999 _c109189
_d109189