Columbia subject headings:
Architectural drawing--Italy--20th century--Catalogs.
Gabetti e Isola--Catalogs.
Gabetti, Roberto--Catalogs.
Isola, Aimaro--Catalogs.
Harvard subject headings:
Architectural drawing--Italy--20th century--Catalogs.
Gabetti e Isola--Catalogs.
Gabetti, Roberto--Catalogs.
Isola, Aimaro--Catalogs.
Princeton subject headings:
Catalogs.
Gabetti e Isola--Catalogs.
Gabetti, Roberto--Catalogs.
Isola, Aimaro--Catalogs.