Columbia subject headings:
Mexico City (Mexico)--Buildings, structures, etc.
Palacio Postal (Mexico City, Mexico)
Post office buildings--Conservation and restoration--Mexico.
Postal service--Mexico.
Harvard subject headings:
Mexico City (Mexico)--Buildings, structures, etc.
Palacio Postal (Mexico City, Mexico)
Post office buildings--Conservation and restoration--Mexico.
Postal service--Mexico
Princeton subject headings:
Mexico City (Mexico)--Buildings, structures, etc.
Palacio Postal (Mexico City, Mexico)
Post office buildings--Conservation and restoration--Mexico.
Postal service--Mexico.