Dyfyniad APA

(1986). The history of techniques. New York: Gordon and Breach Science Publishers.

Dyfyniad Arddull Chicago

The History of Techniques. New York: Gordon and Breach Science Publishers, 1986.

Dyfyniad MLA

The History of Techniques. New York: Gordon and Breach Science Publishers, 1986.

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