Columbia subject headings:
Corporations--Charitable contributions--United States.
Corporations--Taxation--United States.
Corporations--United States--Charitable contributions.
Endowments--United States.
Industries--Social aspects--United States.
Harvard subject headings:
Corporations--Charitable contributions--United States
Corporations--Taxation--United States.
Endowments--United States.
Industries--Social aspects--United States
Princeton subject headings:
Corporations--Charitable contributions--United States.
Corporations--Taxation--United States.
Endowments--United States.
Industries--Social aspects--United States.