| 000 | 00450cam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 180718b1967 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aP64 Un3t | ||
| 100 | _aErdos, Renee F. | ||
| 245 |
_aTeaching by correspondence: a study undertaken by Renee F. Erdos Head of the school of external studies Sydney technical college, Australia on behalf of Unesco _cby Renee F. Erdos |
||
| 260 |
_aParis _bUnesco _c1967 |
||
| 300 | _a218p. | ||
| 700 | _aFrance, Unesco | ||
| 999 |
_c494989 _d494989 |
||