Columbia subject headings:
Cathedrals--Spain--Designs and plans.
Cathedrals--Spain.
Measured drawing--Spain.
Harvard subject headings:
Cathedrals--Spain--Designs and plans.
Church architecture--Spain--Designs and plans.
Princeton subject headings:
Cathedrals--Spain--Designs and plans.
Cathedrals--Spain.
Measured drawing--Spain.