Columbia subject headings:
Agricultural laborers--Health and hygiene--United States.
Pesticide applicators (Persons)--Health and hygiene--United States.
Pesticides--Application--Safety measures.
Pesticides--Toxicology--United States.
Harvard subject headings:
Agricultural laborers--Health and hygiene--United States.
Pesticide applicators (Persons)--Health and hygiene--United States.
Pesticides--Application--Safety measures.
Pesticides--Toxicology--United States.
Princeton subject headings:
Agricultural laborers--Diseases--United States.
Pesticide applicators (Persons)--Diseases--United States.
Pesticides--Application--Safety measures.
Pesticides--Toxicology--United States.