Columbia subject headings:
Denmark--Guidebooks.
Iceland--Guidebooks.
Norway--Guidebooks.
Spitsbergen Island (Norway)--Guidebooks.
Sweden--Guidebooks.
Harvard subject headings:
Denmark--Guidebooks.
Iceland--Guidebooks.
Norway--Guidebooks.
Spitsbergen Island (Norway)--Guidebooks.
Sweden--Guidebooks.
Princeton subject headings:
Denmark--Guidebooks.
Guidebooks.
Iceland--Guidebooks.
Norway--Guidebooks.
Spitsbergen Island (Norway)--Guidebooks.
Sweden--Guidebooks.