000 00284nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a153
_bVAReference
100 _avarma,Reference
245 0 _acommunication technique
260 _bUDH Pub.
_c1992
300 _a199
942 _2ddc
999 _c7628
_d7628