000 | 00338nam a22001217a 4500 | ||
---|---|---|---|
020 | _a9788120346390 | ||
082 |
_a025.52 _bGUR.T |
||
100 | _aGURDEV SINGH | ||
245 | _aInformation sources, services and systems | ||
260 |
_aNew Delhi _bPHI Learning _c2013 |
||
650 |
_aInformation Sources _aLibrary and Information science |
||
942 | _cBK | ||
999 |
_c198304 _d198304 |