| 000 | 00319 am a2200121 a 4500 | ||
|---|---|---|---|
| 245 | 1 | _aNitrification in Sudan soil | |
| 260 |
_aKhartoum _c1914 |
||
| 300 | _a1-25 p. | ||
| 100 | 1 | _aMartin, F.J., Massey, R.E. | |
| 942 |
_2udc _cB |
||
| 440 | _aSoil Sudan Goverment Chemical Section. Publication No. 29 | ||
| 901 | _aS58308 | ||
| 999 |
_c101292 _d101292 |
||