APA-referens

Dudley, U. (1997). Numerology, or, What Pythagoras wrought. Washington, DC: Mathematical Association of America.

Chicago-stil citat

Dudley, Underwood. Numerology, Or, What Pythagoras Wrought. Washington, DC: Mathematical Association of America, 1997.

MLA-referens

Dudley, Underwood. Numerology, Or, What Pythagoras Wrought. Washington, DC: Mathematical Association of America, 1997.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.