Columbia subject headings:
Books--Spain--Salamanca--History--16th century.
Printing--Spain--Salamanca--History--16th century.
Harvard subject headings:
Books--Spain--Salamanca--History--1400-1600.
Books--Spain--Salamanca--History--1450-1600.
Printing--Spain--Salamanca--History--16th century.
Princeton subject headings:
Books--Spain--Salamanca--History--16th century.
Printing--Spain--Salamanca--History--16th century.