Columbia subject headings:
Industries--Guam--Statistics.
Industries--Puerto Rico--Statistics.
Industries--United States Virgin Islands--Statistics.
Harvard subject headings:
Industrial statistics--Guam.
Industrial statistics--Puerto Rico.
Industrial statistics--United States Virgin Islands.
Industries--Puerto Rico
Puerto Rico--Commerce.
Princeton subject headings:
Industrial statistics--Guam.
Industrial statistics--Puerto Rico.
Industrial statistics--Virgin Islands of the United States.