| 000 | 00385 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHughes, F. | |
| 245 | 1 |
_aFixation of atmospheric nitrogen _bA communication made to the cairo scientific society, jonuary 3, 1919 |
|
| 260 |
_aCairo _c1922 |
||
| 300 | _a1-13 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aVirginia Agricultural Experiment Sation. Technical Bulletin No. 20 | ||
| 901 | _aS55465 | ||
| 999 |
_c113832 _d113832 |
||