| 000 | 00432 a2200145 4500 | ||
|---|---|---|---|
| 245 | 1 | _aStudy of the action of machine tractor units on the upper soil layer | |
| 260 |
_aAuburn _c1970 |
||
| 650 | _aMachine Tractor Units | ||
| 650 | _aUpper Soil Layer | ||
| 100 | 1 |
_aBocharov, A.P., Terpilovsk, E.Y. _d |
|
| 300 | _a8 p. | ||
| 440 |
_aNo. PB 198 _vAlabama National Tillage Machinery Laboratory |
||
| 942 |
_2udc _cB |
||
| 901 | _a125905 | ||
| 999 |
_c93075 _d93075 |
||