Dyfyniad APA

(1961). Charles Babbage on the principles and development of the calculator: And other seminal writings. New York: Dover Publications.

Dyfyniad Arddull Chicago

Charles Babbage On the Principles and Development of the Calculator: And Other Seminal Writings. New York: Dover Publications, 1961.

Dyfyniad MLA

Charles Babbage On the Principles and Development of the Calculator: And Other Seminal Writings. New York: Dover Publications, 1961.

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