| 000 | 00343 a2200145 4500 | ||
|---|---|---|---|
| 082 |
_a378.99 _bRao/U |
||
| 100 | _aRao, Usha | ||
| 245 |
_aEducational technology _cUsha Rao |
||
| 250 | _a4th rev ed. | ||
| 260 |
_aMumbai _bHimalaya _c2001 |
||
| 300 |
_a277 p. _c20 cm. |
||
| 500 | _a5th ed, 2003 | ||
| 650 | _aEducational Technology | ||
| 942 | _cBK | ||
| 999 |
_c2502 _d2511 |
||