The penguin dictionary of curious and interesting numbers /
Wells, David.
The penguin dictionary of curious and interesting numbers / David Wells. - Harmondsworth, England : Penguin Books, 1986. - 229 p.
0140080295
55052271
Number theory--Dictionaries.
The penguin dictionary of curious and interesting numbers / David Wells. - Harmondsworth, England : Penguin Books, 1986. - 229 p.
0140080295
55052271
Number theory--Dictionaries.