Dyfyniad APA

(2007).  Environmentally conscious materials and chemicals processing.  John Wiley & Sons.

Dyfyniad Arddull Chicago

 Environmentally Conscious Materials and Chemicals Processing.  John Wiley & Sons, 2007.

Dyfyniad MLA

 Environmentally Conscious Materials and Chemicals Processing.  John Wiley & Sons, 2007.

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