Dyfyniad APA

American Society for Testing Materials & International Association for Testing Materials. (1910). Year-book. American Society for Testing Materials.

Dyfyniad Arddull Chicago

American Society for Testing Materials and International Association for Testing Materials. Year-book. Philadelphia: American Society for Testing Materials, 1910.

Dyfyniad MLA

American Society for Testing Materials and International Association for Testing Materials. Year-book. American Society for Testing Materials, 1910.

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