00679nam a2200241Ia 4500 113493 BIBL 20160527183609.0 930412s1970 sp a p 00010 spa evn00001471 B66-10941 EVLG QA248 .Y75 512/.817 512.81 Y75s E Young, Robert Gordon. 292936 Local Conjuntos Robert Gordon Young. Madrid Ediciones del Castillo 1970. 96 p. diagrs. 21 cm. Serie Didáctica programada Translation of : Sets. Set theory. Programmed instruction. 168923 Local 94833 94833 0 0 0 512_810000000000000_Y75S_E 0 evl 30700 10 10 1 2016-05-27 173408 0 512.81 Y75s E 80000001220592 2016-05-27 00:00:00 r:113493 z:NCC:D 6