Centers for Disease Control and Prevention. (1997). Screening young children for lead poisoning: Guidance for state and local public health officials. CDC.
Cita Chicago (17th ed.)Centers for Disease Control and Prevention. Screening Young Children for Lead Poisoning: Guidance for State and Local Public Health Officials. Atlanta, GA: CDC, 1997.
Cita MLA (9th ed.)Centers for Disease Control and Prevention. Screening Young Children for Lead Poisoning: Guidance for State and Local Public Health Officials. CDC, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.