 |
| |||
| non-return-to-reference recording; non-return-to-zero recording | |||
| enregistrement sans retour à zéro: 8 phrases in 1 subject |
| Information technology | 8 |
|
| |||
| non-return-to-reference recording; non-return-to-zero recording | |||
| enregistrement sans retour à zéro: 8 phrases in 1 subject |
| Information technology | 8 |