Dyfyniad APA

La Manitia, F. P. (1993). Recycling of plastic materials. Clem tech.

Dyfyniad Arddull Chicago

La Manitia, Francesco Paolo. Recycling of Plastic Materials. Canada: Clem tech, 1993.

Dyfyniad MLA

La Manitia, Francesco Paolo. Recycling of Plastic Materials. Clem tech, 1993.

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