Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.