Columbia subject headings:
Diderot, Denis, 1713-1784--Travel.
Diderot, Denis, 1713-1784.
Travel in literature.
Travel--Philosophy.
Harvard subject headings:
Diderot, Denis, 1713-1784--Philosophy.
Diderot, Denis, 1713-1784--Travel.
Travel in literature.
Voyages and travels--Philosophy.
Princeton subject headings:
Diderot, Denis, 1713-1784--Travel.
Diderot, Denis, 1713-1784.
Travel in literature.
Travel--Philosophy.