000 00334nam a2200145Ia 4500
008 160615s9999 xx 000 0 und d
100 _aGREGORY(P C) et al
245 _aThe GB6 catalog of radio sources
260 _bNRAO
260 _c1995
300 _aPbk.irreg p.
942 _cBooks
999 _c19930
_d19930