000 00392nam a2200157Ia 4500
008 180424s9999 xx 000 0 und d
084 _a512.5 O3:4
245 0 _aLinear Mathematics Unit 23 and 24
250 _a\\197000ENGGPSX
260 _aOpen University Press
260 _b1970
260 _cMilton Keynes
300 _a51p
500 _aincludes index and biblioraphy
942 _cBK
999 _c39077
_d39077