Columbia subject headings:
Alcoholism and employment--Study and teaching--United States.
Alcoholism--Study and teaching--United States.
Drug abuse--Study and teaching--United States.
Drugs and employment--Study and teaching--United States.
Employees--Alcohol use--United States--Study and teaching.
Harvard subject headings:
Princeton subject headings:
Alcoholism--Study and teaching--United States.
Drug abuse--Study and teaching--United States.
Employees--Training of--United States--Handbooks, manuals, etc.
Safety education, Industrial--United States--Handbooks, manuals, etc.