Columbia subject headings:
Bonds--Taxation--United States.
Mortgage-backed securities--Taxation--United States.
Securities--Taxation.
Harvard subject headings:
Bonds--Taxation--United States.
Mortgage-backed securities--Taxation--United States.
Securities--Taxation--United States
Taxation of bonds, securities, etc.--United States.
Princeton subject headings:
Mortgage-backed securities--Taxation--United States.
Securities--Taxation--United States.