Dyfyniad APA

National Research Council (U.S.). Subcommittee on Acute Exposure Guideline Levels & ebrary, Inc. (2002). Acute exposure guideline levels for selected airborne chemicals. National Academy Press.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Subcommittee on Acute Exposure Guideline Levels and Inc ebrary. Acute Exposure Guideline Levels for Selected Airborne Chemicals. Washington, D.C.: National Academy Press, 2002.

Dyfyniad MLA

National Research Council (U.S.). Subcommittee on Acute Exposure Guideline Levels and Inc ebrary. Acute Exposure Guideline Levels for Selected Airborne Chemicals. National Academy Press, 2002.

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