George Arnold e Frank Cahill

The sociable, or, One thousand and one home amusements

Dick & Fitzgerald Publishers, New York 1858.

The Book of 500 Curious Puzzles, Containing a Large Collection of Entertaining Paradoxes, Perplexing Deceptions in Numbers, and Amusing Tricks in Geometry

Dick & Fitzgerald, New York 1859.

Ebenezer Landells

The boy's own toy-maker. A practical illustrated guide

D. Appleton & Co, New York 1860 (I ed. 1859).

Gaston Tissandier

Inaudi, the calculator

Scientific American, N. 15, Vol. 66, Munn & Co., New York 9 april 1892, p. 230.

Alfred Binet

The calculator, Giacomo Inaudi

The Literary Digest, N. 11, Vol. 5, Funk & Wagnalls, New York 16 july 1892, pp. 293-294.

Jean-Martin Charcot

Physiologie psychologique. Un calculateur prodige, Inaudi

The New York Medical Times, N. 9, Vol. 20, New York december 1892, pp. 285-286.

Henry Ernest Dudeney

The Canterbury puzzles, and other curious problems

E. P. Dutton and co., New York 1908 (I ed. 1907).