For children. Originally published(B57-1913),-Watts; Bailey & Swinfen,1956.
Catalogue Data
OBNB ID GB6312618
ISBN 10 n/a
ISBN 13 n/a
Type BibliographicResource, Book
Dewey Classification 001.5436
ISBD
P1053 62p.
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The first book of codes and ciphers by Sam Epstein. Published by E.Ward in 1963. Publication and catalogue information, links to buy online and reader comments.