Columbia subject headings:
Geology--Canary Islands--Tenerife--Guidebooks.
Tenerife (Canary Islands)--Guidebooks.
Volcanoes--Canary Islands--Tenerife.
Harvard subject headings:
Geology--Canary Islands--Tenerife--Guidebooks.
Tenerife (Canary Islands)--Guidebooks.
Volcanoes--Canary Islands--Tenerife.
Princeton subject headings:
Geology--Canary Islands--Tenerife--Guidebooks.
Tenerife (Canary Islands)--Guidebooks.
Volcanoes--Canary Islands--Tenerife.