Dyfyniad APA

(1994). Materials science and technology teachers handbook. Washington: Pacific Northwest National Laboratory.

Dyfyniad Arddull Chicago

Materials Science and Technology Teachers Handbook. Washington: Pacific Northwest National Laboratory, 1994.

Dyfyniad MLA

Materials Science and Technology Teachers Handbook. Washington: Pacific Northwest National Laboratory, 1994.

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