Dyfyniad APA
National Research Council (U.S.). Subcommittee on Spacecraft Maximum Allowable Concentrations & ebrary, Inc. (1994). Spacecraft maximum allowable concentrations for selected airborne contaminants. National Academy Press.
Dyfyniad Arddull Chicago
National Research Council (U.S.). Subcommittee on Spacecraft Maximum Allowable Concentrations and Inc ebrary. Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants. Washington, D.C.: National Academy Press, 1994.
Dyfyniad MLA
National Research Council (U.S.). Subcommittee on Spacecraft Maximum Allowable Concentrations and Inc ebrary. Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants. National Academy Press, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.