El smog--a quién perjudica?
Subtitle: lo que usted necesita saber acerca del ozono y su salud
Contributors: United States. Environmental Protection Agency. Office of Air and Radiation
Publisher: U.S. Environmental Protection Agency, Air and Radiation
Published: 2000
Place of publication: Washington, DC
Language: spa
Subjects: Smog -- United States; Air -- Pollution -- United States; Atmospheric ozone -- Environmental aspects -- United States
Other titles: Lo que usted necesita saber acerca del ozono y su salud
Notes: Cover title

"February 2000."

Shipping list no.: 2001-0018-P

"EPA-452/K-00-001."

Also available via Internet from the EPA web site. Address as of 11-14-00: http://www.epa.gov/airprogm/oar/oaqps/airnow/elsmog/index.html; current access is available via PURL