| 000 | 00414 a2200133 4500 | ||
|---|---|---|---|
| 100 | 1 | _avan Schilfgaarde, Jan | |
| 245 | 1 | _aPhysical and mathematical theories of tile and ditch drainage and their usefulness in design | |
| 260 |
_aAmes _c1956 |
||
| 300 | _a667-706 p. | ||
| 440 | _aIowa Agricultural Experiment Station. Research Bulletin No. 436 | ||
| 650 | _aPhysical, Design | ||
| 942 |
_2udc _cB |
||
| 901 | _a49858 | ||
| 999 |
_c55750 _d55750 |
||