Columbia subject headings:
Big business--United States--Handbooks, manuals, etc.
Corporations--United States--Handbooks, manuals, etc.
Industries--United States--Handbooks, manuals, etc.
United States--Commerce--Handbooks, manuals, etc.
Harvard subject headings:
Big business--United States--Handbooks, manuals, etc.
Corporations--United States--Handbooks, manuals, etc.
Industries--United States--Handbooks, manuals, etc.
United States--Commerce--Handbooks, manuals, etc.
Princeton subject headings: