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Dickson, Louise, 1959-

Lu & Clancy's secret languages / Lu and Clancy's secret languages written by Louise Dickson ; illustrated by Pat Cupples. - Toronto : Kids Can Press, c2001. - 40 p. : ill. ; 26 cm. - Lu & Clancy .

1550746952 (pbk.) : $6.95 1553370252 (bound)


Ciphers.
Cryptography.

j652/.8