Columbia subject headings:
Charitable uses, trusts, and foundations--Taxation--United States.
Charitable uses, trusts, and foundations--United States.
Nonprofit organizations--Taxation--United States.
Nonprofit organizations--United States.
Harvard subject headings:
Charitable uses, trusts, and foundations--Taxation--United States.
Charitable uses, trusts, and foundations--United States.
Nonprofit organizations--Law and legislation--United States
Nonprofit organizations--Taxation--Law and legislation--United States
Nonprofit organizations--Taxation--United States
Nonprofit organizations--United States.
Princeton subject headings:
Charitable uses, trusts, and foundations--Taxation--United States.
Charitable uses, trusts, and foundations--United States.
Nonprofit organizations--Taxation--United States.
Nonprofit organizations--United States.