Dyfyniad APA
ebrary, Inc, & Stratton, K. R. (2001). Clearing the smoke: Assessing the science base for tobacco harm reduction. Institute of Medicine, National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc, and Kathleen R. Stratton. Clearing the Smoke: Assessing the Science Base for Tobacco Harm Reduction. Washington, D.C.: Institute of Medicine, National Academy Press, 2001.
Dyfyniad MLA
ebrary, Inc, and Kathleen R. Stratton. Clearing the Smoke: Assessing the Science Base for Tobacco Harm Reduction. Institute of Medicine, National Academy Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.