Betts, K. S. (2008). Chemical Exposures: Not Immune to PFOS Effects? National Institute of Environmental Health Sciences.
استشهاد بنمط شيكاغوBetts, Kellyn S. Chemical Exposures: Not Immune to PFOS Effects? National Institute of Environmental Health Sciences, 2008.
MLA استشهادBetts, Kellyn S. Chemical Exposures: Not Immune to PFOS Effects? National Institute of Environmental Health Sciences, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.