| 000 | 00393 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aPlessis, S.J. | |
| 245 | 1 | _aStudies on the pear blossom blight disease Caused by bacterium nectarophilum, doidge | |
| 260 |
_aPretoria _c1935 |
||
| 300 | _a1-16 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aDisease, Pear Union of South Africa Department of Agriculture. Science Bulletin No. 141 | ||
| 901 | _aS52434 | ||
| 999 |
_c110137 _d110137 |
||