| 000 | 00344 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aDahlberg, A.C. | |
| 245 | 1 | _aTwenty-two years of tuberculin testing in the same herd | |
| 260 |
_aGeneva _c1923 |
||
| 300 | _a1-8 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aTuberculin New York Agricultural Experiment Station. Bulletin No. 496 | ||
| 901 | _aS52837 | ||
| 999 |
_c110701 _d110701 |
||