Columbia subject headings:
Decontamination (from gases, chemicals, etc.)
Gases, Asphyxiating and poisonous--War use.
Herbicides--War use.
Harvard subject headings:
Decontamination (from gases, chemicals, etc.)
Gases, Asphyxiating and poisonous--War use.
Herbicides--War use.
Princeton subject headings:
Decontamination (from gases, chemicals, etc.)
Gases, Asphyxiating and poisonous--War use.
Herbicides--War use.