000 | 00516nam a2200181u 4500 | ||
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001 | 00125814 | ||
003 | PWmBRO | ||
005 | 20190304163433.0 | ||
008 | 960923s1961 us b 0000 eng c | ||
100 | 1 | 0 |
_aPeck, Lyman C., _d1920- |
245 | 1 | 0 |
_aSecret codes, remainder arithmetic, and matrices / _cLyman C. Peck. |
260 | 0 |
_aReston, Virginia : _bNational Council of Teachers of Mathematics, _c1961. |
|
300 |
_a54 p. : _bill. |
||
650 | 0 | _aArithmetic. | |
650 | 0 | _aCiphers. | |
650 | 0 | _aMatrices. | |
942 | _2ddc | ||
999 |
_c92895 _d92895 |