Secret language : communicating in codes and ciphers /
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| Author / Creator: | Bielewicz, Julian A. |
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| Imprint: | Sydney : Holt, Rinehart and Winston, c1976. |
| Description: | 126 p. : ill. ; 26 cm. |
| Language: | English |
| Subject: | |
| Format: | Print Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/3157289 |