| 000 | 00448nam a22001337a 4500 | ||
|---|---|---|---|
| 008 | 230731b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 100 |
_aKent, Allen _9963 |
||
| 245 | _aCost-benefit model of some critical library operations in terms of use of materials | ||
| 260 |
_aWashington: _bDivision of Science Information, _c1978 |
||
| 300 | _a243p. | ||
| 650 | _aReport | ||
| 942 |
_2udc _cREP |
||
| 999 |
_c56344 _d56344 |
||