000 00338nam a2200133Ia 4500
008 180710s9999 xx 000 0 und d
020 _a50376
082 _a23
_bPRO
245 _aProfessional and non-professional duties in libraries
250 _a2nd ed.
260 _aLondon
_bLibrary association
_c1975
300 _a86 p.
942 _cR
999 _c75881
_d75881