Columbia subject headings:
Art--Conservation and restoration.
Art--Handling.
Picasso, Pablo, 1881-1973. Guernica.
Harvard subject headings:
Painting--Conservation and restoration--Congresses.
Painting--Transportation--Congresses.
Picasso, Pablo, 1881-1973. Guernica--Congresses.
Princeton subject headings:
Painting--Conservation and restoration--Congresses.
Painting--Transportation--Congresses.
Picasso, Pablo, 1881-1973. Guernica--Congresses.