Loads of codes and secret ciphers
Discusses and provides practice in making and breaking codes and ciphers, as well as in building simple coding devices to transmit secret messages.
Collier Macmillan
1984
9780027478105
book
Holdings
| hid | mid | miid | nid | wid | location_code | location | barcode | callnum | dewey | created | updated |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1528152 | 5158095 | 2346 | 99738 | 162205 | WESE | 490 | WESE004695 | MYSTERY CODES JAN | 1000 | 1581465224 | 1736518457 |
| 2938669 | 6413744 | 2403 | 99738 | 162205 | NEM | 346 | NWJ0008002 | 001.54 JAN | 1.54 | 1637782573 | 1736800991 |
| 2997987 | 6459812 | 2407 | 99738 | 162205 | PCE | 301 | PCC0000007 | 001.54 JAN | 1.54 | 1637782573 | 1736800991 |
| 2997988 | 6459812 | 2407 | 99738 | 162205 | PCE | 301 | PCC0000008 | 001.54 JAN | 1.54 | 1637782573 | 1736800991 |