Betts, K. S. (2012). CDC Updates Guidelines for Children’s Lead Exposure. National Institute of Environmental Health Sciences.
Citação norma ChicagoBetts, Kellyn S. CDC Updates Guidelines for Children’s Lead Exposure. National Institute of Environmental Health Sciences, 2012.
Citação norma MLABetts, Kellyn S. CDC Updates Guidelines for Children’s Lead Exposure. National Institute of Environmental Health Sciences, 2012.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.