| 000 | 00393 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 |
_a _d |
|
| 245 | 1 | _aProceeding of a conference on soil science problems held at the rothamsted experimental station | |
| 260 |
_aLondon _c1931 |
||
| 300 | _a1-44 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aExperiment, Science, Soil Imperial Bureau of Soil Science. Technical Communication No. 17 | ||
| 901 | _aS46886 | ||
| 999 |
_c102598 _d102598 |
||