Columbia subject headings:
Harvard subject headings:
Hebrew imprints--Portugal--15th century.
Hebrew literature--Portugal--Bibliography.
Incunabula--Portugal--Bibliography.
Portugal--Imprints--15th century.
Printing, Hebrew--Portugal--History--15th century.
Printing, Hebrew.
Printing--Portugal--History--Origin and antecedents.
Printing--Portugal--History.
Princeton subject headings:
Hebrew imprints--Portugal--15th century.
Incunabula--Portugal--Bibliography.
Portugal--Imprints--15th century.
Printing, Hebrew--Portugal--History--15th century.
Printing--Portugal--History--Origin and antecedents.