APA (7e ed.) Bronvermelding

Não informado. (1973). ASTM Standardization News. American Society for Testing and Materials.

Chicago (17e ed.) Bronvermelding

Não informado. ASTM Standardization News. Philadelphia, Pa: American Society for Testing and Materials, 1973.

MLA (8e ed.) Bronvermelding

Não informado. ASTM Standardization News. American Society for Testing and Materials, 1973.

Let op: Deze citaties zijn niet altijd 100% accuraat.