| 000 | 00459nam a22001817a 4500 | ||
|---|---|---|---|
| 003 | SCBCCL | ||
| 005 | 20210824125141.0 | ||
| 008 | 201115s1991 ii ||||| |||| 00| 0 eng d | ||
| 020 |
_cRs.225.00 _a 978-93-5024-489-0 |
||
| 040 | _aSCBCCL | ||
| 082 |
_a371.33 _bRAO\E |
||
| 100 | 1 | _aRao, Usha | |
| 245 | 1 |
_a Educational technology _cUsha Rao |
|
| 260 |
_aNew Delhi _bHimalaya publishing. _c1991. |
||
| 300 | _a350p. | ||
| 500 | _aIncludes index. | ||
| 942 | _cBOOK | ||
| 999 |
_c6468 _d6468 |
||