000 00252nam a22001097a 4500
082 _a029.7 SHA
100 _aSHARP,J
245 _aINFORMATION RETRIEVAL:NOTES FOR STUDENTS
260 _aLONDON
_bANDREW DEUTSCH
_c1970
300 _a90PG
_bILL
942 _cBK
999 _c20515
_d20515