Columbia subject headings:
Diplomats--Soviet Union--Biography.
Italy--Description and travel--Early works to 1800.
Statesmen--Soviet Union--Biography.
Tolstoĭ, Petr Andreevich, graf, 1645-1729--Travel--Italy.
Harvard subject headings:
Diplomats--Soviet Union--Biography
Italy--Description and travel--Early works to 1800.
Statesmen--Soviet Union--Biography.
Tolstoĭ, Petr Andreevich, graf, 1645-1729--Journeys--Italy.
Princeton subject headings:
Diplomats--Soviet Union--Biography.
Italy--Description and travel.
Statesmen--Soviet Union--Biography.
Tolstoĭ, Petr Andreevich, graf, 1645-1729--Travel--Italy.