What has the author Norvin Pallas written?

Answer 1

Norvin Pallas has written:

'Games with codes and ciphers' -- subject(s): Ciphers, Juvenile literature, Cryptography

'The big cat mystery'

'The S. S. Shamrock mystery'

'The locked safe mystery'

'The locked safe mystery' -- subject(s): Protected DAISY

'The empty house mystery'

'Calculator puzzles, tricks and games' -- subject(s): Calculators, Problems, exercises, Juvenile literature, Mathematical recreations

'Code games' -- subject(s): Ciphers, Juvenile literature, Cryptography

'The counterfeit mystery' -- subject(s): Protected DAISY

'The locked safe mystery' -- subject(s): Protected DAISY