000 00371nam a2200145Ia 4500
001 10805
008 170722s9999 xx 000 0 und d
110 _aOpen University Course Team
245 _aHistorical perspective. Block 1. Units 1-3 /
260 _aOpen Uty press :
_c1973.
300 _a132 p.
_c29.5cms
653 _aHistory
653 _aScience
942 _cGEN
999 _c94684
_d94684