Columbia subject headings:
Tobago (Trinidad and Tobago)--Registers.
Trinidad and Tobago--History--Periodicals.
Trinidad and Tobago--Periodicals.
Trinidad--Description and travel--Periodicals.
Trinidad--Registers.
Trinidad--Statistics--Periodicals.
Harvard subject headings:
Tobago--Registers.
Trinidad and Tobago--History--Periodicals.
Trinidad and Tobago--Periodicals.
Trinidad--Description and travel--Periodicals.
Trinidad--Registers.
Trinidad--Statistics--Periodicals.
Princeton subject headings: