Columbia subject headings:
Harvard subject headings:
Benzoylphenyl ureas--Toxicology.
Environmental health
Princeton subject headings:
Benzoylphenyl ureas--Environmental aspects.
Benzoylphenyl ureas--Physiological effect.
Benzoylphenyl ureas--Toxicology.
Insecticides--Environmental aspects.
Insecticides--Physiological effect.
Insecticides--Toxicology.