Columbia subject headings:
Crane, Nicholas--Travel--Europe.
Europe--Description and travel.
Hiking--Europe.
Mountains--Europe--Description and travel.
Harvard subject headings:
Crane, Nicholas--Journeys--Europe.
Europe--Description and travel.
Hiking--Europe.
Mountains--Europe
Princeton subject headings:
Crane, Nicholas--Travel--Europe.
Europe--Description and travel.
Hiking--Europe.
Mountains--Europe.