000 00280nam a2200097Ia 4500
008 240404s9999 xx 000 0 und d
100 _aBarbilian, Dan
245 0 _aOpera didactica: Geometrie elementara
_cDan Barbilian
260 _aBucuresti
_bED. TEHNICA
_c1968
942 _aIMAR
_cCART
999 _c36025
_d36025