Indoor air - Assessment an inventory of indoor air quality research in the united states :  1989-1990 / 
United States. Environmental Protection Agency. Office of Research and Development Washington. 
 - S. l. :  Government Printing Office,  S. a. 
 - various pages. 
<br/><br/> "EPA 600/8-90/080F."  "March 1991." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air quality--Health aspects