Dyfyniad APA

Annual book of ASTM. (1974). Annual book of ASTM standards. American Society for Testing and Materials.

Dyfyniad Arddull Chicago

Annual book of ASTM. Annual Book of ASTM Standards. Philadelphia: American Society for Testing and Materials, 1974.

Dyfyniad MLA

Annual book of ASTM. Annual Book of ASTM Standards. American Society for Testing and Materials, 1974.

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