000 00378nam a22001337a 4500
005 20220518181059.0
008 100529t xxu||||| |||| 00| 0 eng d
082 _a503.21
_bM2:M9
100 _aParker,Sybil
_e2 nd ed.
_927509
245 _aMcGraw -Hill concise encyclopedia of science& technology
942 _cREF
260 _aNew york
_bMcGraw hill
_c1978
020 _a0070455120
999 _c259107
_d259107