| 000 | 00350 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aPowers, W.L. | |
| 245 | 1 | _aDrainage and improvement of white land and similar wet land | |
| 260 |
_aCorvallis _c1923 |
||
| 300 | _a1-8 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aDrainage, Land Oregon Agricultural Experiment Station. Circular No. 47 | ||
| 901 | _aS47739 | ||
| 999 |
_c103719 _d103719 |
||