Columbia subject headings:
Caesar, Julius--Tomb.
Campo Marzio (Rome, Italy)
Mausoleums--Italy--Rome.
Harvard subject headings:
Caesar, Julius--Tomb.
Campo Marzio (Rome, Italy)--Buildings, structures, etc.
Mausoleums--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Caesar, Julius--Tomb.
Campo Marzio (Rome, Italy)
Mausoleums--Italy--Rome.