000 00304nam a2200121Ia 4500
008 220201s1976 xx 000 0 eng d
082 _bURQ
100 _aUrquhart, J.A & N.C.
245 0 _arelegation and lock control in libraries
260 _alondon
_bOriel Press
_c1976
300 _a154
942 _2ddc
999 _c20814
_d20814