| 000 | 00423nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 240530s9999 xx 000 0 und d | ||
| 041 | _aEnglish | ||
| 084 |
_aE:5 _bQ5 |
||
| 100 | _aP S Ramakrishnan | ||
| 245 | 0 |
_aEcology and sustainable developments _bWorking with knowledge systems |
|
| 260 |
_aDelhi _c2015 _bNatinal Book Trust |
||
| 300 | _ap.217 | ||
| 650 | _aB.EL.Ed | ||
| 700 | _aT V Venkateswaran | ||
| 942 | _cBK | ||
| 999 |
_c278372 _d278372 |
||