Dyfyniad APA

(2007).  Environmentally consious mechanical design.  John Wiley & Sons.

Dyfyniad Arddull Chicago

 Environmentally Consious Mechanical Design.  John Wiley & Sons, 2007.

Dyfyniad MLA

 Environmentally Consious Mechanical Design.  John Wiley & Sons, 2007.

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