Columbia subject headings:
Harvard subject headings:
Business enterprises--Security measures--Management.
Business enterprises--Security measures.
Corporations--Security measures
Corporations--Security measures--Management.
Industries--Security measures
Industries--Security measures--Management.
Princeton subject headings:
Business enterprises--Security measures--Management.
Business enterprises--Security measures.
Corporations--Security measures--Management.
Corporations--Security measures.
Industries--Security measures--Management.
Industries--Security measures.