000 00309nam a2200121Ia 4500
008 220201s1990 xx 000 0 eng d
082 _a621.381
_bLAF
100 _aLafrance, Pierre
245 0 _aFundamentals concepts in communication
260 _alondon
_bPrentice Hall
_c1990
300 _a432
942 _2ddc
999 _c34770
_d34770