000 00304nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a40870666
082 _a001.433WIL
100 _aWilson Chauncey
245 0 _aUsabillity,Testing, Essentials
260 _bThe butterworth group
_c1975
942 _cBK
999 _c430755
_d430755