ebrary, Inc. (1996). Spacecraft maximum allowable concentrations for selected airborne contaminants. National Academy Press.
Chicago-referens (17:e uppl.)ebrary, Inc. Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants. Washington, D.C.: National Academy Press, 1996.
MLA-referens (9:e uppl.)ebrary, Inc. Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants. National Academy Press, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.