Columbia subject headings:
Lazio (Italy)--Antiquities--Guidebooks.
Roads, Roman--Italy--Lazio--Guidebooks.
Via Tuscolana (Italy)--Guidebooks.
Harvard subject headings:
Architecture--Italy--Lazio--Guidebooks.
Lazio (Italy)--Antiquities, Roman--Guidebooks.
Roads, Roman--Italy--Lazio--Guidebooks.
Via Tuscolana (Italy)--Guidebooks.
Princeton subject headings:
Lazio (Italy)--Guidebooks.
Via Tuscolana (Italy)--Guidebooks.