Columbia subject headings:
Harvard subject headings:
Church architecture--Sweden--Uppland.
Church buildings--Sweden--Frötuna.
Church buildings--Sweden--Länna.
Church buildings--Sweden--Uppland.
Church decoration and ornament--Sweden--Uppland.
Uppland (Sweden)--Buildings, structures, etc.
Uppland (Sweden)--Church history.
Princeton subject headings:
Church architecture--Sweden--Uppland.
Church decoration and ornament--Sweden--Uppland.