000 00345nam a22001217a 4500
008 140429b xxu||||| |||| 00| 0 eng d
020 _a0582036046
050 _aHA31.2
_b.E44 1989
245 _aElectronic research centres:
260 _aUK:
_bLongmao,
_c1989.
300 _a523p,:
_c25cm.
942 _2lcc
_cREF
_hHA31.2.E44 1989
999 _c113756
_d113756