Amusements in mathematics
Dudeney, Henry Ernest
Amusements in mathematics - London Thomas Nelson and Sons Ltd 1917 - vii,258p. 20cm. ill.
Mathematical recreations
Puzzles
QA95.D82
Amusements in mathematics - London Thomas Nelson and Sons Ltd 1917 - vii,258p. 20cm. ill.
Mathematical recreations
Puzzles
QA95.D82