APA-referens

(1900). The science of numbers simplified: A book of practical short rules in mathematics. New York: J. L. O'Connor.

Chicago-stil citat

The Science of Numbers Simplified: A Book of Practical Short Rules in Mathematics. New York: J. L. O'Connor, 1900.

MLA-referens

The Science of Numbers Simplified: A Book of Practical Short Rules in Mathematics. New York: J. L. O'Connor, 1900.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.