Columbia subject headings:
Harvard subject headings:
Badia greca di Grottaferrata di Maria Santissima.
Grottaferrata (Italy)--Buildings, structures, etc.
Princeton subject headings:
Badia greca di Grottaferrata di Maria Santissima.
Church architecture--Italy--Grottaferrata.
Grottaferrata (Italy)--Buildings, structures, etc.