000 | 00308 a2200109 4500 | ||
---|---|---|---|
008 | 190207b xxu||||| |||| 00| 0 | ||
100 | _aSingh,R.N | ||
245 |
_aRole of blue-green algae in nitrogen economy of indian agriculture / _cSingh,R.N |
||
260 |
_aNew Delhi _bICAR _c1961 |
||
300 | _a175p. | ||
942 |
_2ddc _cBK |
||
999 |
_c7982 _d7982 |