000 00306nam a2200121Ia 4500
008 220809s9999 xx 000 0 und d
040 _cAPI-LIB
082 _a420 G7991b 1979
245 0 _aBasic Language: messages and meaning
260 _aNew York
_bHarper & Row Pub.
_c1979
942 _cBK
999 _c27109
_d27109