Columbia subject headings:
Architecture--Conservation and restoration--Mexico--Mérida.
Architecture--Mexico--Mérida.
Monuments--Conservation and restoration--Mexico--Mérida.
Harvard subject headings:
Architecture--Conservation and restoration--Mexico--Mérida.
Architecture--Mexico--Mérida.
Monuments--Conservation and restoration--Mexico--Mérida.
Princeton subject headings:
Architecture--Conservation and restoration--Mexico--Mérida.
Architecture--Mexico--Mérida.
Monuments--Mexico--Mérida--Conservation and restoration.