| 000 | 00413nam a22001337a 4500 | ||
|---|---|---|---|
| 008 | 230419b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 245 |
_aLive poliovirus vaccines _c/ World Health Organization |
||
| 260 |
_aWashington: _bWorld Health Organization, _c1960 |
||
| 300 | _a59p. | ||
| 650 | _2Economics | ||
| 653 | _aEnvironment | ||
| 942 |
_2udc _cREF |
||
| 999 |
_c53734 _d53734 |
||