@book{149316,
	author = {Estados Unidos. Agency for Toxic Substances and Disease Registry, ATSDR},
	title = {Sitio web institucional},
	publisher = {Estados Unidos. Department of Health and Human Services},
	address = {Atlanta},
	note = {Sitio visitado en junio de 2003 ; Navegadores de Internet ; Adobe Acrobat (PDF)},
	url = {http://www.atsdr.cdc.gov/}
}