Dyfyniad APA

American Society of Tool Engineers. (1956). ASTE data sheet numerical index. American Society of Tool Engineers.

Dyfyniad Arddull Chicago

American Society of Tool Engineers. ASTE Data Sheet Numerical Index. Detroit, Mich.: American Society of Tool Engineers, 1956.

Dyfyniad MLA

American Society of Tool Engineers. ASTE Data Sheet Numerical Index. American Society of Tool Engineers, 1956.

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