Dyfyniad APA

American Society for Testing and Materials. (1996). Environmental toxicology and risk assessment: Fourth volume. ASTM.

Dyfyniad Arddull Chicago

American Society for Testing and Materials. Environmental Toxicology and Risk Assessment: Fourth Volume. Philadelphia, PA: ASTM, 1996.

Dyfyniad MLA

American Society for Testing and Materials. Environmental Toxicology and Risk Assessment: Fourth Volume. ASTM, 1996.

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