Columbia subject headings:
Illustrated books--History--15th and 16th centuries.
Incunabula--Bibliography.
Printing--Germany--Ulm--History.
Wood-engraving--Germany--Ulm--History.
Harvard subject headings:
Illustrated books--History--15th and 16th centuries
Incunabula--Bibliography
Printing--Germany--Ulm--History.
Wood-engraving--Germany--Ulm--History.
Princeton subject headings:
Illustrated books--History--15th and 16th centuries.
Incunabula--Bibliography.
Printing--Germany--Ulm--History.
Wood-engraving--Germany--Ulm--History.