| 000 | 00495cam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 180718b1972 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aO0651 W893 | ||
| 245 |
_aStatistical principles in public health field studies: fifteenth report of the WHO expert committee on health statistics _cby World Health Organization |
||
| 260 |
_aGeneva _bWorld Health Organization _c1972 |
||
| 300 | _a32p. | ||
| 440 | _aWorld Health Organization Technical Report Series No.510 | ||
| 700 | _aWorld Health Organization | ||
| 999 |
_c411984 _d411984 |
||