Dyfyniad APA

(2008). Annual book of ASTM standards: Section eight: plastics. ASTM International.

Dyfyniad Arddull Chicago

Annual Book of ASTM Standards: Section Eight: Plastics. West Conshohocken: ASTM International, 2008.

Dyfyniad MLA

Annual Book of ASTM Standards: Section Eight: Plastics. ASTM International, 2008.

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