000 00302nam a2200121Ia 4500
005 20251007104424.0
008 251006s9999 xx 000 0 und d
100 _aBacon, M.D.%Bull, G.M., jt.auth.
245 0 _aData transmission
260 _a1st.ed | .ondon MacDonald
260 _c1973
942 _cBOK
999 _c6850
_d6850