Number puzzles /
TYLER Jenny
Number puzzles / Jenny Tyler ; illustrated and designed by Graham Round. - London : Usborne , 1980 - 32 p. : col. ill.
0860204359 (pbk.)
PUZZLES--JUVENILE LITERATURE
Number puzzles / Jenny Tyler ; illustrated and designed by Graham Round. - London : Usborne , 1980 - 32 p. : col. ill.
0860204359 (pbk.)
PUZZLES--JUVENILE LITERATURE