| 000 | 00562 a2200205 4500 | ||
|---|---|---|---|
| 999 |
_c6090 _d6090 |
||
| 003 | ISURa | ||
| 008 | 170329b xxu||||| |||| 00| 0 eng d | ||
| 020 | _a9552309212 | ||
| 041 | _aEnglish | ||
| 082 |
_a577.145 _bPER |
||
| 100 |
_aPerera , K. Sarath D. _91950 |
||
| 245 | _aNitrogen cycle & nitrogen fixation | ||
| 260 |
_c2003 _aColombo _bSampath publishers & printers _g2003 |
||
| 300 |
_bill. _c21 cm. _a52 p. |
||
| 650 |
_aNITROGEN _913113 |
||
| 650 |
_aNITROGEN CYCLE _918362 |
||
| 650 |
_aNITROGENASE _937538 |
||
| 650 |
_aBIOLOGY _937539 |
||
| 942 |
_cSR _2ddc |
||