Columbia subject headings:
Crime prevention--United States--Handbooks, manuals, etc.
Gang prevention--United States--Handbooks, manuals, etc.
Gangs--United States--Handbooks, manuals, etc.
Harvard subject headings:
Crime prevention--United States--Handbooks, manuals, etc.
Gang prevention--United States--Handbooks, manuals, etc.
Gangs--United States--Handbooks, manuals, etc.
Princeton subject headings:
Crime prevention--United States--Handbooks, manuals, etc.
Gang prevention--United States--Handbooks, manuals, etc.
Gangs--United States--Handbooks, manuals, etc.