Παραπομπή APA

Dudeney, H. E. (1958). Amusements in mathematics: Henry Ernest Dudeney. Dover Publications.

Παραπομπή Chicago Style

Dudeney, Henry Ernest. Amusements in Mathematics: Henry Ernest Dudeney. New York: Dover Publications, 1958.

Παραπομπή MLA

Dudeney, Henry Ernest. Amusements in Mathematics: Henry Ernest Dudeney. Dover Publications, 1958.