00400nam a2200145Ia 4500 060110s9999 xx 000 0 und d 25.432 SAR/U SARDANA, JL SEHGAL, RL Universal decimal classification: structure and methodology J L Sardana and R L Segal Ess Ess Publication 1983 208p. 25.432 GE 0 0 0 0 ASLFC ASLFC PG SECTION 1984-02-24 100.00 2 025.432  SAR/U 44620 2019-11-07 00:00:00 2019-10-28 GE 7322 7322